GMC 1976 TRANSMODE Operating Manual

GMC:

1976

TRANS

MODE

X-7680A

OPERATING

MANUAL

MODELS

ZE06083

AND

ZE06583

IMPORTANT OPERATING,

SAFETY

AND MAINTENANCE INSTRUCTIONS

•

Part

No.

2003753

~--

A

WORD

TO

GMC

OWN

ERS

. • .

This manual has been prepared

to

acquaint

you

with the operation and

maintenance

of

only

the

chassis and

body

components

of

your

TransMode

Vehicle, and

to

provide important safety information.

It

is

supplemented by

convenient folders which provide additional information

on

vehicle

maintenance, emission control, and warranties.

We

urge you

to

read these

publications carefully and follow

the

recommendations

to

help assure

the

most enjoyable and troublefree operation

of

your vehicle.

When

it

comes

to

service, remember that

your

GMC

MotorHome dealer

knows

your

chassis and

body

components best and is interested in

your

complete satisfaction. Return

to

him for Guardian Maintenance Service and

any

other

assistance

you

may require.

GMC

Truck and Coach maintains a number

of

Zone Offices throughout

the

country. Should you have a problem

that

cannot be handled through normal

channels, follow

the

procedure presented in Section 6

of

this manual under

the

heading, "Owner Assistance".

We

would like

to

take this

opportunity

to

thank you for choosing a

GMC

product-and

assure you

of

our

continuing interest in

your

motoring pleasure

and satisfaction.

GMC

Truck & Coach Division

FOR

CONTINU

ING

SATISFACTION,

KEEP

YOUR

VEHICLE

ALL

GM.

GENERAL

MOTORS

PARTS ARE

IDENTIFIED

BY

ONE

OF

THESE

TRADEMARKS:

GMC

TRANSMODE

VEHICLE

Operating

Manual

This manual should be considered a permanent part

of

the

vehicle,

and

must remain with

the

vehicle

at

time

of

resale.

For

vehicles sold in Canada, substitute the name General Motors

of

Canada Limited, wherever

the

name

GMC

Truck and Coach Division

appears in this manual.

All

information, illustrations and specifications contained in this manual

ar

e based

on

the latest product information available at the time

of

publication. The right

is

reserved to make changes at any time without

notice.

TABLE

OF

Sect

ion

I

Before Starting

You

r

Vehicle

2

Starting

and Operating Vehicle

Steering Column

Contro

ls

Floor

Controls

.

Instrument

Panel

and

Contro

ls

3

In Case

of

Emergency

4

Appearance

Care

5 Service and Maintenance

GMC Truck

& Coach Division

General Motors Corporation

Pontiac, Michigan

48053

CONTENTS

Page

5

10

12

17

19

33

39

. .

45

6

Specifications, Owner Assistance,

Index, Gas Station Information

67

IMPORTAN

T I

NFORMATION

ON

VEH

ICLE

L

OADING

OVERLOADING

CAUTION

The components

of

your

vehicle

are

designed

to provide satisfacto

ry

service

if

the vehicle

is

not loaded

in

excess

of

either the

Gross

Vehicle Weight Rating (GVWR) or

the maximum Front

and

Rear

Gros

s

Axle

Weight

Ratings

(GAWR

's)
specified on the vehicle identification
number

(VIN)

plate located

beh

ind

the

right

front

access

door.

Overloading

can

create

seriou

s

potential safety

hazards

and

can also

shorten the

service

life

of

your

vehicle

. Your dealer

can

advise

you

concerning proper loading conditio

ns

of your vehicle.

MAXI

MUM

FRONT

AND

REAR

AXLE

WEI

GHTS (AS

MANUFACTURED)

The weight

of

the cargoload must be

properly distributed over

both

the front

and rear axles, although

not

necessarily

evenly. The (VIN) plate shows the

maximum weight t

hat

the front axle can

carry

(front

GAWR) and the maximum

weight

that

the rear axle (rear GA

WR)

can

carry.

Th

e GVWR represents

the

maximum

permissible loaded weight

of

the

vehicle
and takes into consideration the engine,
transmission, frame, brake, axle and tire
capab ilities. Actual front and rear end

weights

at

the

ground can only

be

determined by weighing the vehicle. This

can be accomplished through highway weigh

stations or

other

such commercial facilitie

s.

For

assistance in this regard, consult

your

GVWR RATING 1

0,500

LBS.

REAR

GAW

R

7,000

LBS

.

REAR

CARGO 3,

900

LBS.

&

PASS

.LO

AD

TOTAl

7,000

LBS

.

MAXIMUM TOTAL WEIGHT AT GROUND 10,500 LBS.

*Curb

weight

is

the

maximum

weight

of

the

vehicle

(as

manufactured

by

GMC)

without

driver,

passengers,

or

cargo

but

does

include

fuel

and

coolant.

Vehicle Loading

(23'

Model)

2

GVWR RATING 11,700

LBS.

,...,

J-1.1

k"lt

I g I yfr

I

~PS

k'fr

REAR

GAWR

7,500 LBS.

I'''

k~

1

~

oV

~6--

MAXIMUM TOTAL WEIGHT AT GROUND

11,700 LBS.

·; 1

Of

K~

5

~07

1(

..

*Curb

weight

is

the

maximum

weight

of

the

vehicle

(as

manufactured

by

GMC)

without

driver,

passengers,

or

cargo

but

does

include

fuel

and

coolant.

Vehicle Loading

(26

' Model)

dealer. Care sho uld also be exercised

to

see

that

the cargoload

is

distributed

on

both

sides

of the centerlin e

of

the

vehicle

as

equally as possible.

EFFECT

ON

WARRANTY

Your New Vehicle Warr

anty

does

not

apply

to

any

part

of

your

vehicle

"w

hich has

been subject

to

misuse." Any part which

fai

ls

because

of

overloading has been

subject

to

misuse.

ALLOWABLE

LATERAL

WEIGHT VARIATION

The independen t suspension

on

this vehicle
could be adversely affected by an
unbalanced load

on

either side

of

vehicle.

The allowable

front

lateral weight variation is 25 0
pounds. The allowable rear lateral weight
variation is

600

pounds.

3

VIN

(Vehicle Identification Number) Plate

The vehicle identification

number

plate

shows

the

GVWR and the

front

and rear

GAWR's for the vehicle

to

which they are

attached.
Gross

Vehicle Weight (GVW) is

the

weight

of

the vehicle itself, all items added

to

the

vehicle after

it

has l

eft the factory, the

driver and all occupants, and everything

0

GENERAL

MOTORS

CORPORATION

0

WARRANTY

MAY

BE

VOID£D

IF

WEIGHT

EXCEEDS

ANY

OF

RATINGS

SHOWN. GROSS

VEHIClE

WEIGHT

INClUD£S

WEIGHT

OF

BAS£

VEHIClE, All

ADD£D

EQUIPMENT, DRIVER

AND

PASSlNGERS, AND

All

PROPERTY

lOADED

INTO

OR

ONTO

VEHIClE.

RATINGS

IN

POUNDS · AS

MANUFACTURED

GMJSS

Y!.HICLE WEIGHT

FOil

THIS

Y!.HICLE

MAXIMUM

FROIIT

ENO

WEIGHT

AT

GIIOU

NO

MAXIMUM

REAli

ENO

WEIGHT

AT

CROUNO

Y!.

HICLE

IOENTIFICATIOft NO.

0

0

Vehicle Identification Plate

that

is loaded

into

(or

onto)

the

vehicle.

The G

VW

must

not

exceed the G

VWR

and

the front and rear weights

of

the

loaded

vehicle

must

not

exceed

the

front and rear

GAWR's.

CAUTION

When using your vehicle

to

transport

luggage

or

other cargo, it

is

recommended

that

the articles

be

secured

in

place. This precaution

wi

II

help prevent such items from

becoming dangerous

projectiles in the

event

of

an accident.

TIRES

It

is

important

that

the

tires on

your

vehicle be

of

the

proper

size, and be

properly inflated.

It

is

important

to

avoid

over-inflation as well as under-inflation.

See
the SERVICE AND MAINTENANCE section
for

proper

tire inflation pressures.

For continuing satisfaction

keep

your

vehicle

all

GM. General

Motors Parts

are

identified by

one

of

these

trademarks

:

4

SECTION

1

BEFORE

STARTING

YOUR

VEHICLE

DRIVER

CHECKLIST

Before Entering Vehicle

1.

See

that

windows, mirrors and lights are

clean.

2. Visually note inflation condition

of

tires.

3. Check

that

area

to

rear

is

clear

if

about

to back up.

Before

Driving

Off

1.

Lock all doors.

2. Position seat.

3. Adjust inside and outside mirrors.

4. Fasten seat belts.

5. Check

that

warning bulbs light when key

is turned to

start

position.

6. Release parking brake (and see

that

brake warning light turns off).

7.

Be

sure you understand

your

vehicle and

how

to

operate it safely.

REMINDER: Always lock entrance

door

when driving for greater security in

the

event

of

an accident,

to

help keep

children

from

opening door,

and

for

greater

security against

entry

by
unwelcome persons while momentarily
stopped.

INSIDE

REARVIEW

MIRROR

Switch inside mirror to night position

to

reduce glare from following headlights.

To

raise

or

lower mirror

to

achieve

desired field

of

view, grasp mirror and

exert sufficient pressure

by

pushing

or

pulling up,

down, or

sideways.

5

KEYS

Two sets

of

keys are furnished with

your

vehicle. Each key has a different cross

section so

that

it

can be inserted only in

certain locks.

Key

with

Square llead- For ignition switch

only.

Key with Oval Head- For

door

lock, glove

box and

othe

r locking compartments.

The code number

of

each key

is

stamped on

the

"knock

out"

plug in

the

key head.

Your

dealer removed these plugs

and placed them with the spare set

of

keys in the special key envelope

that

was

given

to

you

at

the time

of

delivery.

For

your

protection:

• Record the numbers

on

the key envelope

and discard

the

key plugs.

• Keep the key envelope in a safe place
such as

your

wallet, NOT

IN

THE

VEHICLE.

In

the

event the original keys are lost,

duplicates can be made

by

your

dealer

or

Inside Rearview Mirror

Seat Tra

ck

Mechanism

a

locksmith

using

the

key

code

information.

Be

sure

to

lock

the

glove box and

remove

the

key from the vehicle whenever

it

is

necessary

to

leave the ignition

key

with an

attendant.

SEATS

The driver and passenger seats in

the

driver

compartment

may

be adjusted

to

suit an individual's preference (except dual

passenger seat).

To

move seat forward or

backward, simply release the seat locking

lever located

on

the

left

side

of

the seat.

Once released,

exert

slight

body

pressure in

the direction desired. Release lever

to

lock

the seat in the desired position.

The seats can be swiveled

to

provide

easy entrance and exit.

To

tum

swivel

seat, release locking mechanism

by

moving

seat swivel lever,

then

turn seat.

CAUTION

After adjusting a manually operated
seat, always use

body

weight

to

push forward

and

backward

on

seat

to

twist

seat

to

assure

that

seat

adjusters

and

swivel lock have

securely

engaged in

the

new

position

. Motion

of

the

seat

indicates

that

latches are

not

properly engaging . If

the

seat

is

not

locked in position,

the

chance

of

injury

and/or

the

severity

of

injury

in

the

event

of

an accident could in-

crease. If this condition persists,

take

the

vehicle

to

your

dealer for service. DO

NOT adjust

the

driver's seat swivel

or

fore

and

aft

mechanism while

the

vehicle

is

moving. The

seat

could move unexpect-

edly causing loss

of

control

of

the

vehicle.

Seat Swivel Mechanism

6

DOOR LATCH

Entrance Door Latch

ENTRANCE DOOR

DOOR

LATCH

Door must be locked from

ou

tside the

vehicle by inserting

the

key

into

the

door

key lock and turning.

To

unlock,

tum

in
the clockwise direction. Reverse the
direction to lock.

To lock

door

from inside vehicle, push

the

lock

button

DOWN.

To

unlock and

open

door

from the inside, pull the lock

outton

UP and pull

on

inside

door

handle.

LAP

BELTS

Your vehicle

is

equipped with lap belts

in

the

driver

and

front passenger seating

position(s).

It

is

recommended

that

while

the

vehicle

is

in motion , a

ll

occupants
remain seated and keep lap belts buckled
snugly

at

all times.

The

front

outboard

seating positions- have

retractors

which

are

designed

to

automatically take up

excess webbing.

• Adjust seat

to

your

satisfaction and sit

erect and well back in the seat.

• In a single motion, pull webbing across
lap far enough to permit inserting metal
latch plate

end

of

lap belt into the

buckle, until a snap

is

heard.

If

webbing

7

is

not pulled

out

far enough

to

reach

the

buckle, let

the belt

rewind into

the

retractor

to

release lock mechanism, so

be

lt can be pulled

out

to

the

proper

length.

• Position lap belt across lap as

LOW

ON

HIPS

as possible. To reduce

the

risk

of

sliding

und

er the belt during an accident,

adjust to a

SNUG

FIT

by pulling belt

firmly across lap in direction

of

retractor

so it can take up slack.

NOTE: Take care

not

to

let

the

lap belt

twist while

it

is

being rewound into

the

retractor. The bulk

of

the

twisted belt

may cause

the

retractor

to

jam so it will

not

rewind further, while

at

the

same time

the

retractor's locking mechanism may

prevent

the

belt from being withdrawn. If

a belt should become jammed,

you

may be

able

to

release it by working

the

belt in

or

out

until

the

belt rewinds far enough

to

unlock. If lap belt remains jammed

or

other

parts

of

the restraint system do

not

operate properly take

the

vehicle

to

your

dealer for service.

CAUTION

A snug fit

and

a low lap belt

position are essential

to

lessen

the

chance

of

injury in

the

event

of

an

accident, because this spreads

the

Lap Be

lt (Fro

nt

Seating Position)

force

exerted

by

the

lap

belt

in

a

collision over

the

strong hip bone

structure

rather

than

acrosS

the soft

abdominal area.

To

help lessen

the

chance

of

injury in

the

event

of

an

accident: Never use

the

same

belt

for

more

than

one

person

at

a

time; avoid wearing belts in a

twisted

condition;

do

not

allow bel

ts

or

hardware

to

become

dam

aged

by

being pinched between

the

seat

structural

(metallic) members

or

in

the

door.

Inboard seating

pos1t1on, front

dual

passenger seat (if so

equ

ipped) should be

positioned and secured as above, and

adjusted to a

SNUG

FIT

by

pulling on

the end

of

the

belt extending from the ad-

justable

htch

plate.

•

To

lengthen

the

lap belts

at

these

seating positions, place adjustable latch

plate

at

right angle

to

the

belt

webbing

and

puU

on

latch plate; belt should

then

sliJe easily through the

adjustment

feature .

•

To

unfasten scat belts, depress push

button

in center

of

buckle.

8

• When

no

longer in use, front

outboard

lap belts can be stowed

by

allowing

them to rewind

into

their retractors.

LAP

BELT

INSPECTION

• Periodically inspect belts, buckles, latch
plates, retractors, and anchors for damage
that

could lessen

the

effectiveness

of

the

restraint system.

• Keep sharp edges and damaging objects
away from

be

lts and

other

parts

of

the

restraint system .

• Replace belts

if

cut,

weakened, frayed,

or

subjected to collision loads.

• Check

that

the

anchor

mounting

bolts

are tight.

• Have questionable parts replaced.

e Keep belts clean and dry.

• Clean only with mild soap solution and
lukewarm water.

•

Do

not

bleach

or

dye

belts since this

may severely weaken

them.

CHILD

RESTRAINT

Children in vehicles should be restrained

to lessen

the

risk

of

injury

in

accidents,

or

sudden stops.

In

using

any

infant

or

child

restraint system, read and comply with all

installation and usage instructions.

All unused lap belts

near

the child

should be stowed properly

to

help prevent

them from striking

the

child in the event

of

an accident. Lap belts

without

storage
provisions should have buckles latched and
belts adjusted

to

remove slack.

If

a child

is

traveling in a

equipped

with

an appropriate

child restraint system,

the

precautions should be taken:

vehicle not

infant

or

following

I. Infants unable to

sit

up

by themselves

should

be

restrained

by

placing them

in
a covered padded bassinet placed
crossways in

the

vehicle (widthwise)

on

the seat.

The

bassinet should

be

securely

restrained with

the

regular vehicle lap

belts.

2. Children able

to

sit up

by

themselves

should be placed

on

a seat and lap

belted. Never allow a child

to

stand

or

kneel

on

any

seat

or

elsewhere in the

vehicle,

once

it

is underway.

TRAILER HAULING

Towing a trailer will

affect

handling,

durability and

economy.

Maximum safe ty

and satisfaction depends

upon

prop

er

use

of

correct

equipment

and avoiding overloads

and

other

abusive

operation.

The

maximum

loaded trailer weight

which you can pull

with

your

vehicle

depends

on

what

special

equipment

has

been installed. GMC does

not

recommend

towing any trailer

OVER

l ,000 POUNDS

GROSS

TRAILER

WEIGHT unless

the

vehicle

HAS

THE

REQUIRED

EQUIPMENT.

To

assist

in

attaining good handling

of

the

Vehicle Trailer Combination,

it

is

important

that

the

trailer tongue load be

maintained

at

approximately I 0%

of

the

loaded trailer weight.

•Ton

gue loads can

be

adjusted

by

proper

distribution

of

the load

in

the

trailer, and can be checked

by

weighing separately

the

load

ed

trailer and

then

the

tongue.

The allowable passenger and cargo load

(GVW)

of

this vehicle

is

reduced by

an

amount

equal to

the

trailer tongue load

on

the

trailer hitch.

1.

Trailer
trailers
weight.

CAUTIONS

brakes

are

over

1,000

required

on

lbs.

loaded

2.

DO

NOT

tap into vehicle's

hydraulic

brake system if

operation

of

the

trailer

brake

system

requires

more

than 0.

02
cu.-in. of fluid displacement from
the vehicle's

master

cylinder. The

vehicle's

master

cylinder fluid

capacity

will

not be sufficient

to

operate both vehicle

and

trailer

brakes

under

all

conditions

of

use

if

more

than

0.02 cu.-in.

of

fluid

displacement

is

required.

9

3.

Whenever

a

trailer

hitch

is

removed,

be

certain

to

have

any

mounting

holes

in

underbody

properly

sealed

to

prevent

possible

entry

of

exha.~st

fumes, dirt

or

water.

(See

"ENGINE

EXHAUST

GAS

CAUTION"

in

the following

section.)

OPERATION

IN

FOREIGN COUNTRIES

Your

vehicle's engine

is

designed

to

operate

on

unleaded fuel

of

approximately

9 1 research

octane

number.

If

you

plan

to

operate

your

vehicle

outside

the

continenta

l limits

of

the

United

States

or

Canada,

there

is

a possibility

that
the best fuels available are so low in
anti-knock quality

that

excessive knocking
and serious engine damage may result from
their use.

To

obtain

information on

the

quality

of

fuels available in the countries

in

which

you

plan

to

travel write to GMC

Truck

& Coach Division, General Motors

Corporation,

Pontiac, Michigan

48053

(or

in

Ca

nada

write

to

General Motors

of

Canada

Limited,

Owner Relations Department,

Oshawa, Ontario), giving:

• The vehicle identification

number

(from

plate

attached

to right side

of

dash

panel

or

from

the

registration slip

or

title).

• The

country

or

countr

ies in which

you

plan to travel.

It

is recommended

that

you

do

not

operate

your

vehicle in

any

country

not

having fuels meeting

the

requirements

of

your

vehicle's engine as these MAY CAUSE

ENGINE DAMAGE for which GMC Truck

& Coach is

not

responsible

under

the

terms

of

the

New Vehicle Warranty

or

Emission Control Systems Warranty.

SECTION

2

STARTING

AND

OPERATING

VEHICLE

..

ENGINE

EXHAUST

GAS

CAUTION

(CARBON

MONOXIDE)

Avoid inhaling exhaust gases because they contain carbon monoxide, which by

itself

is

colorless and odorless. Carbon monoxide

is

a dangerous

gas

that

can

cause unconsciousness and

is

potentially lethal.

If,

at

any time, you suspect

that

exhaust fumes are entering

the

vehicle

from any source have

the

cause determined and corrected as soon

as

possible.

If

you must drive before

the

cause

is

corrected, drive only with ALL windows

FULLY open and heating

or

cooling system adjusted for maximum ventilation

(see below).

The

best

protection against carbon monoxide entry into

the

vehicle body

is

a
properly maintained engine exhaust system , body and body ventilation system.
It

is

recommended

that

the

exhaust system and body

be

inspected by a

competent mechanic:

• Each time the vehicle

is

raised for lubrication

or

oil change.

• Whenever a change is noticed

in

the

sound, alignment, or appearance of

the

exhaust system.

• Whenever

the

exhaust system, underbody

or

rear

of

the

vehicle

is

damaged.

See

your Maintenance Schedule folder for inspection procedure.

To

allow proper operation

of

the

vehicle's ventilation system, keep

front

inlet

grille clear

of

snow, leaves, or

other

obstructions

at

all times .

AND SEAL

ED

Loca t

ion

of

Ho les in Kick- up Panel

10

OCCUPY!

NG

A PARKED VEHICLE WITH ENGINE RUNNING FOR

AN

EXTENDED PERIOD OF TIME IS

NOT

RECOMMENDED.

Do

not

run engine in confined areas such as garages any more

than

needed

to

move vehicle

in

or

out

of

area. When vehicle

is

stopped in . an

UNCONFINED area with

the

engine running for any more

than a short

per1od

of

time, adjust heating

or

cooling system

to

force outside air into

the

vehicle

as follows:

1.

On vehicles

not

equipped with automotive air conditioning,

set

fan

to

medium

or

high speed and upper control lever

to

any position except

"OFF."

2. On vehides equipped with automotive Air Conditioning, set fan

to

medium

or high

speed and upper control lever

to

any position except

"OFF".

The

two

rear windows

(if

so equipped) should

be

closed while driving

to

avoid drawing dangerous exhaust

gases

into

the

vehicle through those openings.

In

addition, it is recommended

that

roof vent(s) be closed while driving. If, for

some reason, a rear window

or

roof vent must remain open for a period while

driving,

or

electrical wiring

or

other cable connections

to

a trailer must pass

through

the

seal between

them

and

the

body,

the

following precautions should

be

observed.

• Close all windows.

• Adjust heating

or

cooling system

to

force outside air into

the

vehicle as

described

in

Step 1

or

2 above

but

with fan set

at

high speed.

• Air vents

in

or

und•

the

instrument panel should

be

fully open.

It

is important

that

the inside engine cover

be

properly seated

to

prevent

possible

leakage

of

exhaust fumes into

the

vehicle through this opening.

The kick-up panel

at

the

r&a"

of the floor (see illustration) contains holes

which may

be

utilized

to

facilitate access

to

the interior for installation

of

certain interior equipment (i.e., access for wiring, plumbing, etc.) The holes

should

be

plugged

and

sealed

to

avoid possible exhaust

gas

(carbon monoxide)

intrusion into

the

interior

of

the

vehicle.

Whenever operating

the

optional motor-generator it

is

essential

the

left-rear

window (if so equipped)

of

the

vehicle

be

kept dosed

to

prevent possible

entry

of

motor-generator exhaust gases into vehicle. Inspect

the

motor-generator

exhaust system

at

vehicle lubrication intervals

or

when a change

is

noticed in

the

sound, alignment,

or

appearance of

the

exhaust system or if

it

is

damaged.

Do

not

run motor-generator

in

a confined area, such as a garage.

NOTE: Particular care should

be

taken

to

prevent

the

possibility

of

carbon

monoxide exposure when

the

vehicle is modified for recreational

or

other

usage.

Additionally, some recreational vehicle appliances (such

as

lights, refrigerators,

stoves, heaten)

may generate carbon monoxide and should

be

used only if

there

is

adequate

ventilation.

II

STEERING

COLUMN

CONTROLS

E

A

B

c

0

G

A •

CRUISE

CONTROL ENGAGE BUTTON

B •

TURN

SIGNAL

LEVER

C .

TILT-AWAY

STEERING WHEEL

LEVER

0 •

IGNITION

SWITCH
E • HORN BUTTON
F .

HAZARD

WARNING

FLASHER

BUTTON

G TRANSMISSION

SELECTOR

LEVER

Steering Column Controls

ANTI-

THEFT STEERING

COLUMN

LOCK

The

anti-theft

ignition swi

tch, located

on

the right side

of

the

steering

column,

has

five positions:

Anti-Theft

Steering Column

Lock

12

•

ACCESSORY-Permits

operation

of

electrical accessories when

the

engine

is

not

running.

To

engage, push key in and

turn

toward

you

(counterclockwise.)

• LOCK Normal parking position, locks
ignition and provides added

theft

protection

by

preventing normal

operation

of

steering wheel and shift controls. Key

cannot

be

turned

to

"LOCK"

position

and removed

until

transmission is placed

in

"PARK."

•

OFF

Permits turning engine

off

without

locking steering wheel and shift controls.

•

RUN

Normal

operating

position.

•

START

Permits engagement

of

starter.

NOTE

:

The

anti-theft

steering

column

lock

is

not

substitute

for

the

parking brake.

Always

set

the

parking

brake

when

leaving

the driver's seat

unattended

.

If

difficulty is

exper

ienced in

turning

the

ignition key and lock

knob

to

unlock the

ignition,

attempt

to

tum

the

steering wheel

as hard as possible in

the

direction

the

wheels

are

turned.

At

the

same

time

turn

the ignition-lock

knob

in a clockwise

direction

with

as much

effort

as

you

can

apply

with

your

own

hand . Do

not

attempt

to

use a tool

of

any

kind

to

apply

additional force

on

the

lock knob,

as this

could

break

the

knob

.

PARKING

When

leaving

the

driver's

seat

unattended:

e

SET

PARKING

BRAKE

FIRST. (See

note

on

page 19.)

• Place transmission

selector

lever

in

"PARK

."

•

Turn

key

to

LOCK position.

• Remove key from steering

column

lock

(the

buzzer

will remind you).

• Lock

entrance

door

if

leaving vehicle.

NOTICE:

Do

not

leave

your

vehicle

unattended

with.

the

engine running.

If

the engine should

overheat while

your

vehicle

is

unattended

, the

temperature warning light

or

gauge would go
unheeded which could result in extensive
damage

to

your

vehicle.

STARTING ENGINE

I. Apply

the

parking brake.

2.

Place

the

transmission se l

ector

in

"P"

or

"N"

("P"

is

preferred). A

starter

safety

switch

is

designed

to

prevent starter

operation while

the

transmission selector

is

in any drive position.

(If

it

is

necessary

to

re-start

the

engine with

the

vehicle moving,

place the selector lever in

"N".)

3. Depress accelerator pedal and activate

starter

as outlined in

the

following, for

different conditions.

COLD ENGINE

Fully depress accelerator pedal and

slowly release. With

foot

off

the

pedal,

crank

the

engine

by

turning

the

ignition

key

to

the

"START"

position - release

when engine starts.

If

engine

starts

but

fails to run, repeat this procedure. When

engine is running

smoothly

(approx.

30

seconds)

the

idle speed may

be

reduced

by

slightly depressing

the

accelerator pedal and

then slowly releasing.

CAUTION

Extended running

of

the engine

(5

minutes or more) without

depressing

the accelerator pedal, could

cause

damage

to

the engine

or

exhaust

system

due

to

overheating.

WARM

ENGINE

Depre

ss

accelerator pedal

about

halfway

and hold while cranking

the

engine.

13

Transmission Shift Indicator

and Speedometer

EXTREMELY COLD WEATHER (BELOW o•

F.)

(-18• C.)

OR

AFTER

VEHICLE HAS BEEN

STANDING

IDLE

FOR SEVERAL DAYS

Fully depress and release accelerator

pedal two

or

three times before cranking

the engine. With

foot

off

the

accelerator

pedal , crank

the

engine by turning

the

key

to the

start

position- release key when

engine starts.

IF

ENGINE FAILS

TO START:

e First, fully depress and release the I

accelerator pedal several times ,

th

en

remove foot from accelerator pedal and

crank

engine.

•

If

engine still does

not

start, fully

depress

the

accelerator pedal and hold

to

the floor while cranking

the

engine.

•

If

the

engine has been flooded with

gasoline, it may

start

to run

but

not

have enough power

to

keep running.

In

this case,

continue

cranking with

the
accelerator pedal fully depressed until the
engine cleans itself

of

excess gasoline and

runs

smoothly.

•

If

engine

doesn't

crank properly

due

to

a discharged main

battery

(automotive

battery),

place the battery switch in the

"BAT

BOOST"

po

sition. Return the

switch

to

the

"BAT

NORMAL" position

when engine starts.

Turn Signal Lever

NOTE: Do

not

continue

cranking the

engine for more

than

30

seconds

at

a time

to prevent

starter

overheating.

AUTOMATIC TRANSMISSION

The

transmission selector lever

is

located on

the right side

of

the

steering column and the

shift indicator

is

located in the

bottom

section

of

the speedo

meter

cluster

on

the

dash.

•

"PARK"

- Transmission lock when parking

or

while starting

the

engine. Pull the

selector lever towards

you

to select

or

release this position. Never move

the

selector lever

to

"PARK"

position unless

the vehicle

is

completely stopped.

"NEUTRAL"

is

the

only

other

position

in which

your

vehicle may be started.

• REVERSE

"R"-For

backing

the

vehicle.

Bring the vehicle

to

a

complete

stop

before moving

the

selector lever

into

Reverse.

• NEUTRAL

"N"-The

out-of-gear position.

It

is

provided

for

starting a

stalled

engine while

the

vehicle is in motion

or

running

the

engine while standing with

brake applied.

DO NOT COAST IN

NEUTRAL.

e DRIVE RANGE

"D"-The

driving range

for c

ity

and highway driving. This

position permits

the

transmission

to

operate through its complete range

of

gear ratios and

to sele

ct automatically

the

proper

ratio

for road and load

conditions.

14

• SUPER RANGE

"S"

-Used

when super

performance

is

needed for increased

~ccel~ration

i.n

,~raffic,

hill climbing,

or

Engme Brakmg down-hil

l.

The selector

lever

~ay

be moved from

"D"

to

"S"

and .

~tee

~ersa,

under

most

ope

rating

conditiOns.

SUPER"

should

not

be used

at

speeds above 75 MPH.

•

LOW

"L"

- Available

for

heavy pulling

thro~gh

mud

or

sand and

for

engine

brakmg when descending steep hills.

Th

e

selector lever may be moved to

"L"

at

an.y

speed

but

the transmission will only

sh1ft au.tomatically

into

Low range when

the

vehicle speed

is

under

approximately

40

MPH. The transmission will not

upshift from Low range as long as the

selector lever

is

in the

"L"

position.

CAUTION

Before descending a steep

or

long

grade, down a mountain

or

hillside,

reduce

speed

and shift into a lower

gear.

Use

the

lower gear ranges

to

c

ontrol

vehicle

speed. Avoid

prolonged

or

frequent application

of
the brakes which could cause
overheating and

thus

reduce brake
effectiveness. Use caution when
shifting into

lower range

or

lower
gear on slippery surfaces with
vehicle moving- abrupt engine braking
action

could cause the

front

wheels

to

skid, possibly leading

to

loss of

vehicle control.

e FORCED DOWNSHIFT- When additional

acceleration is desired to pass moving
vehicles

or

to climb steep grades

at

speeds between approximately

35

and 65

MPH

,

the

transmission

can

be

downshifted

by

depressing

the

accelerator

pedal completely to

the

floor.

It

is

also

possible to obtain a forced

downshift

in

"DRIVE"

range

at

speeds

under

35

MPH

by

depressing

the

accelerator pedal

part

way down.

TURN SIGNAL

AND

LANE

CHANGE

FEATURE

Whenever a right

or

left turn

is

intended, when changing lanes,

or

when

pulling away from the curb, use the

tum

signals.

• FULL TURN-

For

normal turns, move

the

tum

signal lever

to

position

"A"

for

right

tum

and

"B"

for left

tum.

Lever
will remain in position without manual
effort until

the

turn

is

completed, then

cancel automaticaJly.

e LANE CHANGE- Move lever

to

the

detent

position

"C"

for change

to

right

lane

or

to

"D"

for change

to

left lane.
Hold lever in position until lane
maneuver

is

cgmpleted, then release.

Lever will return

to

"OFF"

position.

HAZARD

WARNING

FLASHER

For

operation

of

hazard warning flasher, see

"In

Case

of

Emergency" later in this

manual

H

ORN

CONTROL

The

hom

is

actuated by depressing the

rectangular shaped GMC

button

located in the

center

of

the steering wheel.

POWER STEERING

If

the steering system power assist fails

due to some malfunction,

or

because the

engine has stalled,

the

vehicle can still be

steered. However,

much

greater effort is

required, particularly in sharp turns.

TILT STEERING

WHEEL

The tilt steering wheel can be tilted

up

above normal position

to

provide additional
room for entrance and exit as well as
selected driving positions above

or

below

normal height.

15

CONTROL

LEVER

Tilt Steering Wheel

Cruise Control Lever

The tilt mechanism is operated by lifting

up

on

the small control lever,

on

the

left

side

of

the steering column

just

below the
directional signal lever, then moving the
steering wheel

to

the selected position and

releasing the lever.

C

RUISE

CONT

ROL

The optional Cruise Control

is

an

automatic speed control system which

is

designed to allow the vehicle

to

hold a

selected speed

of

approximately 30

MPH

or

higher- depending

on

engine limitations-

thus

increasing

comfort

and economy on

turnpikes,

and

other

non-congested

highways.

e

TO

OPERATE-The

Cruise Control

engagement

button

is

located in the end

of the

tum

signal lever. Accelerate

the

vehicle

to

the

desired speed and

momentarily push in

the

engagement

button,

take

your

foot

off

the

accelerator

and

this speed will be

maintained.

•

TO

RESET

AT

A

SPEED- Accelerate the vehicle

desired higher speed, push

FASTER

to

the

in the

release

engagement

button

fully and

slowly.

•

TO

RESET

AT

A

SLOWER

SPEED- Depress

the

engagement

button

fully and HOLD. Allow vehicle

to

16

decelerate. When vehicle reaches desired
speed, release

the

engagement

button

slowly.

•

FOR

PASSING - You can increase

your

speed

by

depressing accelerator pedal.

When you remove

your

foot

from the

pedal,

the

vehicle will slow down to the

cr

utsmg speed set prior

to th

e

acceleration.

e

TO

DISENGAGE-Lightly apply the brake

pedal to disengage system.

CAUTION

DO

NOT

use

the

Cruise

Control

when
conditions are not suitable for maintain­ing

a constant

speed,

such

as

in

heavy

or varying traffic, or

on

winding or

slip-

pery

roads.

With the

Cruise

Control en-

gaged, removing foot from the

accel-

erator

pedal

does

not permit

engine

speed

to

return

to

idle.

Vehicle Floor Controls

FLOOR

CONTROLS

POWER BRAKE SYSTEM

This vehicle

is

equipped with a Dual Hy-

draulic

Split System With Power Assist.

It

is

also equipped with disc

type

brakes

on

the front wheels and

drum

type brakes

on

the tandem rear wheels.

NOTE: Operation

of

the brake system

warning light is covered (on page 2 1)

(in

the section

on

"Instrument

Panel and

Controls.")

17

CAUTION

Driving through

deep

water may wet

the

brakes

and

adversely affect

brake performance so

that

the

vehicle will

not

slow down

at

the

usual rate,

and

may pull

to

the

right

or

left. Applying

the

brakes

lightly will indicate whether

they

have

been

so affected. To

dry

them

quickly,

lightly apply

the

brakes

while maintaining a safe forward

speed with an assured clear distance

ahead

until brake performance

returns

to

normal.

Parking Brake Control

• On

your

vehicle,

if

power assist

to

the

brakes is interrupted due

to

a stalled

engine

or

some malfunction, two

or
more brake applications can normally be
made using reserve power.

•

If

the

brake pedal

is

held down,

the

system

is

designed

to

bring

the

vehicle

to a full

stop

on

reserve power.

However,

the

reserve power

is

partially

depleted each

time the brake pedal is

applied and released. Do

not

pump

brakes when brake power assist has been

interrupted, except when necessary in

order

to

maintain steering control

on

slippery su

rf

aces.

• When reserve power is exhausted,

the
vehicle can still be stopped by applying
great

er

force

to

the pedal.

SELF

-ADJUSTING

BRAKES

Brakes

on

thi

s vehicle (except for the

Parking Brake) are self-adjusting, designed

to

eliminate periodic adjustments.

Drum brake adjustments are
automatically as the brakes are
while vehicle

is

· moving backwards ..

made

applied

Dis

c

brake

adjustment

is made

automatically with each brake application.

18

•

If

excess brake pedal travel develops,
drive alterna tely backward and forward
several times a

nd

apply brakes firmly in

each direction.

• See

your

dealer if normal pedal travel is

not

res

tor

ed,

or

if there

is

a rapid

increase in pedal travel, which could be

a sign

of

othe

r brake trouble. See

your

dealer also

if

adjustment

of

the parking

brake

is

required.

NOTE: "Riding The Brake"

by

resting

your

foot

on

the brake pedal when

not
intending to brake can cause abnorm ally
high brake temperatures, excessive lining

wear and possib

le

damage

to

brakes in

addition

to

wasting gasoline.

REMINDER:

Front

disc brakes have a

built-in wear indicator

th

at is designed

to

make a high frequency , squealing,

or

cricket-like warning sound when

the

linings

are worn to where rep

la

ceme

nt

is required.

The sound will

occur

intermittently

or

continuously when wheels are rolling,

but

will disappear when the brake pedal

is

applied firmly. See also

the

various brake

checks

listed

in

th

e maintenance schedu

le

folder.

PARKING

BRAKE

• To set parking brake, pull up

the

handle

located

on

the floor against the l

eft

wall, below the instrument panel.

•

For

increased holding power, first depress
regular brake pedal with the right foot,
and hold

it

while setting

the

parking

brake with left hand.

•

To

release parking brake push

the

handle

down.

•

As

a reminder, the

"PA

RK BRAKE"

reminder light

is

designed

to

come

on

whenever

the

parking brake

contro

l is

not

fully released, and the ignition is

on.

• Never drive vehicle with parking brake
set

as

this may overheat

or

otherwise

damage rear brakes.

The

amount

of

force required

to

apply

parking brake can be adjusted

by

turning a

tension adjustment knob located

at

the

upper end

of

the

lever. This also adjusts

the degree

of

brake application.

The

greater

the force required

at

the lever

the

greater

the degree

of

brake application.

NOTE:

The

parking brake

shou

ld

be

set

first whenever the driver's seat is l

eft

unattended.

If

the vehic le is parked

on

a grade and·

the transmission is placed in

"PARK"
before the parking brake is set, the weight
of

the vehicle

may

exert

so much force

on

the parking pawl in the transmission

that

the transmission selector lever

cannot

later be pulled

out

of

"PARK."

To

prevent this, the parking brake should be

applied

BEFORE

moving

the

transmission

selector lever

to

"PARK."

When preparing

to move the vehicle,

the

shift indicator

should be moved

out

of

the

"PARK"
position

BEFORE

releasing the parking

brake.

It

is

good driving practice

to

set
the parking brake first, and release the
transmission from

"

PARK"

first

at

all

times, even

on

the level.

If

"torque

lock",

as this condition

is

called, does

occur

, it

may be necessary

to

have

another

vehicle

nudge this vehicle

up

hill, to take some

of

th

e pressure

off

the transmission while

the

driver pulls

on

the transmission selec

tor

lever.

HEADLIGHT

DIMMER

SWITCH

To

obtain

high

or

low beam headlights ,

push the

foot

dimmer

switch located

on

the floor

to

the left

of

the brake pedal.

Each time the switch

is

depressed, the

light beam changes. A headlamp beam

indicator,

on

the

face

of

the

speedometer,

is

designed

to

light

up

when the headlights

are

on

high beam.

HEADLIGHT "FLICKER"

The headlight circuits are

protected

by a

circuit breaker

in

the light switch. An

overload

on

the breaker will cause the

lights to

"flicker"

on

and

off, or

in some

cases

to

remain off.

If

this condition

developes, have

your

headlight electrical

circu

it

checked immediately.

INSTRUMENT

PANEL

AND

CONTROLS

SPEEDOMETER

AND

ODOMETER

The

speedometer indicates the forward

speed

of

the vehicle in miles-per-hour.

The

odometer

registers

the

accumulated mileage

the vehicle has been driven. Also, located

in

the

speedometer cluster

are

the

turn
signal indicators which show direction and
proper operation

of

the

turn signals,

the

high beam

indicator

light, and

the

shift

indicator.

FUEL

GAUGE

Thi

s gauge shows the

approximate

fuel

level in the main

tank

when fuel selector

switch is in the

"FUEL

MAIN" position,

and the fuel level in

the

auxiliary

tank

when fuel selector switch is in

the

"FUEL

AUX"

position.

The

pointer

will indicate

the

correct positions only

when

the

ignition is

in

the

"ON"

position.

19

Since

both

fuel tanks are interconnected,

the indicated level

is

designed

to

read the

same (with

the

switch in either position)

until approximately 60%

of

the total fuel

capacity has been used. See

"Fuel

Selector

Swit

ch"

lat

er

in this section.

TEMPERATURE GAUGE

This gauge registers the

temperature

of

the engine coolant.

The

center area

of

the

water temperature gauge marks

the

normal
operating range. However, if the needle
moves beyond the center area marks into
the

"H"

side

or

hot

area

of

the

gauge,

stop

the

engine as soon as possible, and

remain stopped until the cause

of

the

overheating is determined.

1.

WINDSHIElD

WIPER

CONTROl

7.

Oil

PRESSURE

GAUGE

13

. GENERATOR liGHT

2.

SPEEDOMETER

8. WARN

lNG

liGHTS

14

BRAKE

SYSTEM

WARNING

liGHT

3.

HIGH BEAM INDICATOR

9.

HEATER

/ A.

C.

CONTROlS

15

. FUEl SElECTOR SWITCH

4. ODOMETER

10. liGHT

SWITCH

16

. BA TIERY BOOST SWITCH

5.

TEMPERATURE

GAUGE

11.

WINDSHIElD

WASHER

17

. RADIO & CONTROlS

6. FUEl

GAUGE

12.

SHIFT

INDICATOR

18

. CIGAR liGHTER

Instrument Panel

OIL

PRESSURE

GAUGE

This gauge registers engine oil pressure.

Speedometer and

Gauge

Clusters

The consistency

of

the

oil in a cool

engine will cause a high reading when

the
engine is first started. As the engine
warms, the pressure will recede to normal.

With the engine warmed up

to

normal

operating temperature,_ minimum pre

ssure

at

idle sho uld be slightly above

the

"L"

graduation (8 PSI).

At

normal operating

speeds, minimum pressure should be

20

between the second and middle graduations

(35 PSI). Should the pressure drop below
these

mtn1mums

,

stop

the

engine

immediately and check

the

cause

of

the
low oil pressure. This could be the result
of

a dangerously low oil level in the
crankcase. Driving the vehicle with low oil
pressure can cause extensive engine damage.

CHARGING SYSTEM

WARNING

LIGHT

Located

to

the right

of

the

temperature

gauge

is

the charging system warning light.

A red light

"GEN"

will appear with the

ignition key

in

the

"ON"

position and the
engine not running. This light lets you
know

the

warning signal

is

operational.

Should the light fail

to

come

on,

see

your

MotorHome dealer. When the engine

is

started,

the warning light should go

out

and remain out.

If the light remains

on

when engine is running,

have

your

dealer locate and correct

the

trouble

as

soon as pos.;ible.

BRAKE SYSTEM

WARNING

LIGHT

The service brake system

is

a dual

system designed so

that

one part will

provide some braking action in

the

event

of

loss

of

hydraulic pressure in

the

other

part

of

the

system.

If

the red warning

light, located

to

the left

of

the

oil

pressure gauge, comes

on

and stays

on

when

the

ignition

is

on

and after

the

brakes have been firmly applied,

it

may

indicate

that

there is a malfunction in

one

part

of

the

brake system.

•

As

a check

on

bulb condition the light

should glow during engine starting.

• Have system repaired

if

light does

not

come

on

during check.

• This warning light

is

not a substitute

for

the visual check

of

brake fluid level

required as part

of

normal maintenance.

WHAT

TO

DO

IF

LIGHT

COMES

ON:

•

The

service brake system

is

partially

inoperative.

21

Wa

rning Light Clu

ster

1.

Pull

off

the

road and stop,

carefully- remembering

that:

• Stopping distances may be greater.

• Greater pedal

effort

may be required.

e Pedal travel may be greater.

2. Try

out

brake operation by starting

dild

stopping

on

shoulder

of

road- then:

•

If

you judge such operation

to

be safe,

proceed cautiously

at

a safe speed

to

nearest service

outlet

for repair,

or

• Have vehicle towed to dealer for repair.

Continued operation

of

the vehicle in

this condition

is

dangerous.

TELL-TALE

WARNING

LIGHT CLUS

TER

A cluster

of

indicator lights

is

located

just

to the left

of

the

heater controls.

These are designed

to

inform the driver

of

the status

of

certain systems

or

conditions

of

which he should be aware. Among these

are:

•

"CRUISE"

(Optional

indicator

is

designed

whenever

the

Cruise

engaged and working.

Equipment)-

This

to

glow GREEN

Control System

is

•

"DOOR"-

The

door

light is designed

to

warn the driver

that

the entrance

door

is

not

properly closed.

•

LOW

AIR

- The low air light

is

designed

to warn

the

driver

that

air pressure in

the rear suspension system

is

abnormally

low. (See!

"Emergency Operation ," page

29, later in this section.)

Windshield

Wiper,

Washer,

and Headlight Controls

e "PARK BRAKE"- As a reminder,

the

"PARK

BRAKE" brake reminder light is

designed

to

glow whenever

the

parking

brake

control

is

not

fully released and

the ignition

is

on.

• "LOW

FUEL"

(Optional Light)-

The

low

fuel warning light

in

your

vehicle is

designed to

come

on when

the

main

tank has less

than

five gallons

of

fuel
left and the fuel selector switch in in
the

"FUEL

MAJN" position. If,

at

any

point

after

this,

the

fuel selector

switch is changed

to

"FUEL

AUX"

the

"LOW

FUEL"

warning light will

then

go

out

and

come

on

again when

the

fuel

22

in

the

auxiliary

tank

goes below five

gallons.

At

this

point

both

fuel

tanks

of

your vehicle are nearly depleted.

e

"SET

POWER LEVEL TO

TRAVEL"

~Optiona

l

Light)-

This light

is

designed

to

mform

the

driver

that

the

optional

power

level controls should

be

set to

the

"TRA

VEL"

· position before driving

the vehicle. This will allow

your

vehicle's air

suspension system

to

automatically maintain

the

proper

suspension pressure while the

vehicle is being driven. (See

"Power

Level

System"

later

in

this section.)

HEADLIGHT SWITCH

The

headlight

switch serves

four

functions:

I.

Pulling

the

switch half-way

out

provides parking lights,

instrument

panel
lights, tail lights, side marker lights, and
clearance and identification lights.

2. Pulling

the

switch all

the

way

out
provides all driving lights,- this includes
headlights, plus those mentioned above.

3.

To

dim instrument panel lights,

tum

switch

knob

clockwise.

4.

To

operate

the

dome

lights,

turn

switch

knob

fully counterclockwise.

WINDSHIELD WI

PER

LEVER

The windshield wipers are variable speed,

and hydraulicaiJy powered.

The

lever

control,

on

the

left side

of

the instrument

panel varies the speed

of

the wiper blades

from

stop

("DOWN" position)

to

fast

(extreme

"UP"

position).

WINDSHIELD

WASHERS

The windshield washers are controlled by

the washer switch located under

the

windshield wiper lever. To

operate

the

washers

tum

the wipers

to

an ON

positio~,

then push down

on

the

swit~h

until the desired

amount

of

washer fluid

has been directed to the windshiel

d.

• Check washer fluid level regularly-

do

it

frequently when

the

weather

is

bad.

e Use a fluid such as

GM

OPTIKLEEN

to

prevent freezing damage, and

to

provide

better cleaning.

• Do

not

use radiator antifreeze in

windshield washer;

it

cou ld cause paint

damage .

• In cold weather, warm the windshield
with defrosters before usi

ng

washer-

to

help prevent icing

that

may seriously

obscure vision.

FUEL

SELECTOR

SWITCH

The fuel selector switch, located bel

ow

the

warning light cluster, has two

positions.-"FUEL

MAIN" and

"FUEL

AUX." This switch aiJows the driver

to
change the fuel pick-up and fuel gauge
sending unit from the main tank, as

it

goes empty, to

the

auxiliary

tank

which

will normaiJy contain 7

to

9 gallons

of

fuel.

It

is recommended

that

any time the

fuel system is

filled, this switch be

put

in

the

"FUEL

MAIN" position and left there

until auxiliary fuel

is

needed.

23

Fuel Tank and Battery Switches

BATTERY

BOOST

SWITCH

The

GMC

Dual Battery System provides

power from

two

batteries

to

the vehicle's

12-volt

electrical

system either

in

combination

or

singularly. The components

used to provide charging

and/or

switching

are conventional, except for a diode

assembly with which

both

batteries will

receive charging current whenever

th

e

vehicle is running. The diode assembly has

separate

outputs

to

the two batteries and

provides isolation between

the

batteries and

their associated circuits whenever

the

engine

is

not

running.

The main battery (or automotive battery)

supplies power

to

the chassis circuit; i.e.,
engine, external lights, etc. The auxiliary
battery powers

the

vehicle's internal area;

i.e., internal lights, etc.

The

battery

switch should be left in the

"BAT

NORMAL" position, except when

additional power is needed

for

either

battery circuit.

If

this

is

desired, change

switch to

"BAT BOOST" position. After

use,

it

is recommended

that

switch be

returned

to

the

"BAT NORMAL" position.

NOTE:

If

the

battery

boost switch is left

in

the "BAT BOOST" position for

extended periods this can result in both

batteries being discharged.

Automotive Heating Syste

ms

Controls

The auxiliary battery will recharge itself

while the vehicle's engine

is

running.

CIGAR-CIGARETTE LIGHTER

Push

the

lighter in all the way

to

operate. When it

is

heated sufficiently

to

use, it is designed

to

"snap"

back to
normal position with noticeable sound.
Avoid holding the lighter in by hand while
it

is

heating.

For added safety,

the

cigar-cigarette

lighter has a heat-sensitive terminal which is

designed to melt and break the circuit

if

the lighter becomes overheated.

HEATING SYSTEM

(WITHOUT

AUTOMOTIVE

AIR CONDITIONER)

The heating system controls are located

on the instrument panel

to

the right

of
the steering column. There are three
separate controls;

"FAN"

lever

to

control

speed

of

blower operation; "RECIRC,"

"COLD,"

"HOT"

lever to control

temperature

of

air,

"OFF,"

"VENT

,"

"HEATER,"

"DEF"

lever to control

direction

of

air flow. The

"FAN

" lever
works vertically and the other two levers
work horizontally. The three levers may be
placed in any combined position

to

deliver

the

climate conditions most desirable

at

any given time.

•

''FAN"-

The fan switch has four

positions;

"LO"

and three blower speeds

ranging

to

"HI."

Fan will operate

whenever the key is in the

"RUN"

or

24

"ACCESSORY" position. In order to

operate the fan

in

the

"HI"

position the

engine must be running.

e

"OFF,"

"VENT,"

"HEATER,"

"DEF"-With

the lever in the

"OFF"

position the system is

off

except for the

blower. With

the

lever in the "VENT"
position 100% outside air enters the
driver's compartment. The air enters

through the dash mounted

out

lets and
through the heater outlets. Temperature
of

incoming air may

be

controlled by

moving the

"RECIRC," "COLD,"

"HOT"
(temperature) lever to desires position.
Any one

of

the blower speeds may be

selected.
With

the

lever in

the

"HEATER"

position, air

wil

l flow through the heater
floor distributor outlet (with slight flow
of

air

to

the defroster outlet).

For
maximum heat, move temperature lever
to

"HOT"

position and

"FAN"

switch

lever

to

"HI"

position. Heating system

output

can be varied by moving

temperature lever and

"FAN"

lever

to

different positions.

With lever in the

"DEF"

position,

the
system operates the same as in the
"HEATER"

position except most

of

the

air flow will

be

through

the

defroster

outlets

at

the windshield.

e "RECIRC," "COLD,"

"HOT"-This

lever,

used

in

conjunction with the system

selector

lever

("OFF,"

"VENT,"

"HEATER,"

"DEF")

and the

"FAN"

switch lever, will control the temperature

of

the

output

air being distributed.

• Clear windshield, rear window, outside
mirror, and all side windows

of

ice and

snow before driving vehicle.

e Operate blower on

"HI"

for a few
seconds before moving the vehicle, to
clear the air intake

of

snow

to

further

reduce the possibility

of

fogging on

inside

of

windshield.

AUTOMOTIVE AIR CONDITIONER

The

Automotive Air Conditioning System
offers year-round driving com fort. In
addition

to

providing circulation

of

cool air

during

hot

weather,

the

system

can

provide
warm air in cold weather and dehumidify
outside air in humid weather.

Combined air conditioning and heating

system controls are located

on

the

instrument

panel in the upper right-hand

corner. There are three separate con trois;

"FAN"

lever,

to

control speed

of

blower;
"OFF,"

"A/C,"

"VENT,"

"HEATER,"

"DEF"

lever to control direction

of

air

flow and which system

is

to be operated;

"RECIRC,"

"COLD,"

"HOT"

lever to

control

the

temperature

of

the air.

The
three levers may be placed in many
combined positions

to

deliver

the

climate

conditions most desirable

at

any

given

•

''FAN"-

The fan switch has four

positions;

"LO"

and three blower speeds

ranging

to

"HI."

Fan will operate

whenever

the

key

is

in

the

"RUN"

or

"ACCESSORY" position. In

order

to

operate

the

fan in

the

"HI"

position

the

engine mu st be running.

e

"OFF,"

"A/C,"

"VENT,"

"HEATER,"

''DEF

" - With

the

lever in the

"OFF"

position

the

system

is

off

except for the

blower. With

the

lever in

the

"A/C"

position the

air conditioning system is

activated.

With th e lever in

the

"VENT"

position,

I

00

% outside air enters

the

driver's

compartment. This setting

is

for use during

periods

of

less severe heat and humidity,

air flow

is

identical

to

air flow in

"A/C"

position, however,

the

air conditioning

compressor

is

not

operating.

Temperature

of

incoming air may be controlled

by

moving

the

temperature

lever

to

the

desired

position. Any

one

of

the

blower speeds

may be selected.

With

th

e lever in

the

"HEATER"

position ,

air will flow through the

heater

floor

distributor outlets (with a slight flow

of

air

to

the defroster

outlet).

For

maximum

25

Automotive

Air

Conditioner Controls

heat, move

the

temperature

lever

to

"HOT"

position and

"FAN"

switch lever

to

"HI"

position. Heating system

output

can be varied

by

moving

temperature

lever

and

"FAN"

lever

to

different positions.

With

the

lever in

"DEF"

position , system

operates

the

same

as

in

the

"HEATER"

position except most

of

the

air flow will

be through the defroster

outlets

at the

windshield.

e

TYPE

"RECIRC,"

"COLD,"

"HOT"

- This lever, used in conjunction

with

the

system selector lever

("OFF,"

"A/C,"

"VENT,"

"HEATER,"

"DEF")

and the

"FAN"

switch lever, will control

the temperature

of

the

output

air being

distributed. With

the

lever

in

th

e

"RECIRC"

position (and

the

upper

lev

er

in the

"A/C"

position) the blower

automatically goes to

"HI"

speed

providing

the

engine

is

running. This

position uses

80% recirculated air. This
setting will provide maximum cooling. In
combination with

"A/C"

setting moving

the

temperature lever

to

the

"COLD"
position provides 100% outside air.
Further

movement

of

the

temperature

lever to

the

right (toward

"HOT"

position) will heat

the

dehumidified air

to

the desired temperature.

The

"FAN"
switch can be set to meet air flow
requirements.

eTYPE

2

"RECJRC,"

"COLD

,"

"HOT"-The

Type

2 lever differs in

function, though

not

in appearance from

the

Type

1 le':'er.

The

Type

2 system

is

identified

by

additional air outlets,

lo cated below

the

instrument

panel (as

Location

of

Type 2 Air

Conditioner

Outlets (Typical)

shown). With

the

lever in

the

"RECIRC"

position ,

the

additional air

outlets

are

activated to provide maximum coo ling.

100% outside air

is

used exclusively,

regardle

ss

of

lever position. The blower

speed may

be

varied by moving

the

"F

AN" switch position.

The

"C

OLD"

and

"

HOT"

position

s allow for

temperature

modulation

using

the

standard air

outlets

, as in

the

Type

I

system.

CAUTION

Operate

in

"DE

F"

position for

30

se

cond

s before switchi

ng

to "A/C." Th

is

will remove humid air from the

syste

m

and

minimize rapid

fogging

of

the

gla

ss

which

can

occur if humid air

is

blown

onto a cool wi

ndshie

ld.

Push

Button

AM

Radio

26

• Clear windshield, rear window, outside
mirrors, and all side windows

of

ice and

snow before driving vehic le.

e Operate blower

on

"HI"

for

a few

seconds before moving

the

vehicle,

to

help clear

the

air intake

of

snow

to

further reduce

the

possibility

of

fogging

on

inside

of

windshield.

RADIOS

AND

TAPE

DECK

PUSH

BUTTON "AM"

RADIO

The

"ON-OFF"

switch

is

on

the

left-hand center knob with

the

volume

control.

The

left-hand outside

knob

varies

the

tone

response

of

the

receiver.

The

right-hand center

knob

is

used

to

select

the

station desired. The right-hand outside

knob adjusts

the

volume

of

front and rear

speakers.

In

addition

to

the

manual controls, this

radio provides five push

buttons

with

which to automatically select pre-set

stations.

To

pre-set, pull

the

push

button

"out

" as far as it will go,

tune

in

the

desired station manually, and

then

push

the

button "in."

Repeat this operation for each push

button.

AM

-FM RADIO

In addition

to

providing s

tandard

AM

reception, this set permits you

to

receive

clear static-free FM broadcasts. Move

the

slide bar, above the push

buttons

to

the

right

or

left to select

AM

or

FM

reception. All

other

controls remain

the

same as described for push

button

radios.

FM broadcasts may

be

received as far as

25 miles from

the

sending station,

depending

on

the

power

of

the

station and

the

existing terrain. In fringe areas,

it

may

be possible

to

retune

the

radio slight ly

to

maintain peak reception.

If

not ,

retune

to

a closer

or

stronger FM

station

or

switch

to

AM

operation. Push

buttons

may be set

for

both

AM

or

FM

stations as follows:

• Place slide bar

in

AM

position.

'~

...

'

~~~,..,

--,

1

.

({v)

;.

_

~-·

'

"'~

I

~

L i J

ff.i!Ci

;-

,....- ,-

~

I I

'---

. -

-~

-~--

--~~

-·

---~

AM-FM Stereo Radio with Tape

Deck (

Tape Remov

ed)

• Pull push

button

out

as

far as

it

will

go,

tune

in

desired

AM

station manually

and

then

push

button

in

to

LOCK-IN

position.

• Repeat for each remaining push

button.

• Place

sHde

bar in

FM

position and

repeat procedures

outHned for

AM

band

setting.

IMPORTA

NT:

Bands should not be changed

if push

button

is

unlocked or radio may

be damaged.

ANTENNA

The radio antenna is mounted

on

top

of

the vehicle.

If

necessary, adjustments

for

maximum antenna effectiveness on

AM

can

be made by

your

authorized

GMC

MotorHome dealer.

STER

EO RADIO

Stereo receivers permit

FM

stereo

reception with

the

AM-FM

radio. Radio

controls are used

to

tum

the

set

on

and

off

and for station selection.

For

most

pleasing stereo effect,

the

speakers are

criss-crossed,

with

the left front and right
rear speakers reproducing the left channel,
and the opposite speakers reproducing the right
channel._Balancing the speakers is

not

required as

this adjustment has been made

at

the

factory.

Should

it

become necessary

to

make this adjust-

ment, see

your

GMC

MotorHome dealer.

The

indicator light will

be

on

when the radio

is

tuned

to

an

FM

stereo station. Most broadcasts on

such stations will

be

in stereo.

27

AM-FM Stereo Radio with Tape

Deck

(T

ape Installed)

To

Tune Your Stereo

Rad

io

• Tune radio

to

an

FM

Stereo station

(one which makes

the

indicator light

come on with a steady glow).

• Tune

the

lever behind

the

station
selector knob until volume from front
and rear speakers sounds equal.

• Regulate

vo

lume and

tone

controls

as

required.

STEREO

TAPE

SYSTEM

The optional Stereo Tape Player provides

prerecorded stereo programs for your

enjoyment

To

play, insert cartridge through tape

door

with label side

up

and

open

end in
first. Tape will play through all four
programs in succession, then replay in same

sequence. Balancing

the

speakers

is

not

required as this adjustment has been made

at the factory. Should

it

become necessary

to

make this adjustment, see

your

GMC

MotorHome dealer.

1.

Rotate fader control until volume from

front and rear speakers sounds equal.

2. Regulale volume and tone controls as

desired .

3.

To

change program track, push in
volume control knob and release; player
will index

to

next track.

4.

Push in the

"eject"

button

to

remove

tape cartridge from player.

Power Level Systems Control

Cleaning and Care

Every I

00

hours

of

operation,

or

if

tape

slips

and

runs

slowly,

the

capstan (revolving

metal post), head and

tape

guide should be

cleaned

with

a

cotton-tipped

swab

moistened with alcohol

(do

not

use carbon

tetrachloride).

To

clean the capstan,

trip

the

"ON-OFF"

switch

at

the

rear

of

the

receptable with

your

finger and hold the

swab against the rotating capstan.

IMPORTANT: When

tape

player is

not

in

use, remove

the

cartridge and

store

it in a

cool, dry place

out

of

direct sunlight.

If

the cartridge is

not

removed, the radio
may be inoperative and possible roller
damage

to

the

tape

unit

could occur.

MOBILE

RADIO

TRANSMITTERS

Mobile radio

transmitting

equipment

is

subject

to

Federal

Communication

Commissi

on

regulations and

must

be

installed by a qualified radio technician.

The

specific installation

instructions

for

radio transmitters will vary

depending

upon

the

radio

equipment

used. Mobile

telephone

equipment installed

by

your

local

telephone

company,

citizens band radios and

electronic garage

door

openers

will

not

adversely affect vehicle

operation.

In the

event

any

other

type

of

mobile radio

transmitter

is

to

be installed, further

28

instructions are required so

that

vehicle

operation will

not

be adversely affected.

Contact

GMC

Truck

& Coach Division,

General Motors Corporation, Technical
Service

Department,

Pontiac, Michigan

48053

(or

in Canada,

contact

General

Motors

of

Canada Limited,

Product

Service

Department,

Oshawa, Ontario).

POWER

LEVEL

SYSTEM

The

optiona

l Power Level System

provides

the

ability to level

the

vehicle

at

campsite

or

parking area where

the

ground
is not level. This system overrides the
automatic

leveling feature

that

maintains a

constant

ride height

at

the

rear

tandem

suspension.

The

Power Level System can

raise

or

lower

the

rear

of

the

vehicle
approximately 4 inches from normal ride
height.

The

Power Level

Cont

rols are located

to

the

right

of

the steering wheel

at

the

lower

portion

of

the

dash panel.

NORMAL OPERATION

The

cont

rols consist

of

two

knobs

labeled:

"LEFT

REAR"

and

"R

IGHT

REAR."

Each

knob

has

four

positions

and

is used as follows:

"RAISE"-Knob

in this

position

will raise

rear

of

vehicle

to

any

desired

level,

up

to

a

maximum

of 4 inches

above

normal ride

height. When desired

height

is

reached,

turn

indicator

knob

to

"HOLD"

position.

"HOLD"

- When

indicator line

on

knob

is

turned

to

this

position

the

appropriate

side

of

the

vehicle will

remain

at that

height.

This

can

be

done

after bei

ng

either

in

the

"RAISE"

or

"LOWER"

position

.

It

is

recommended

that

when

vehicle

is

parked

that

the

two

knobs

be

turned

to

"HOLD."

"LOWER"-

With

the

indicator

line in

this

position

the

appropriate

side

of

the

vehicle

will

lower

a

maximum

of 4 inches

below

normal

ride height.

In

order

to

maitain

a

desired

height

turn

indicator

on

knob

to

"HOLD."

"TRAVEL"

- Whenever driving

veh

icle

on

highways

or

improved

roads place

indicator

line in

"TRAVEL"

position.

This

wi

ll

automatically

maintain

a

constant

ride

height

at

the

rear

(approx.

8-inch

ground

clearance

at

rear)

. A

reminder

light

in

the

dash panel

is

designed

to light

any

time

the

engine

is

running

and

the

transmission

selector

lever is

moved

to

"D"

(Drive

Range).

When using

Power

Level

the

veh

icle

engine

need

not

be

running

to

operate

the

system, however, the

ignition

key

must

be

in

the

"ACCESSORY"

position.

A glass

of

water

or a bubb

le

type

level

when

placed

in a

normally

level

location

inside

the

vehicle

can

be

used

to

assist in

determining

the

desired level

condition.

OFF-ROAD

OPERATION

In

order

to

gain

maximum

ground

c

learance

both

control

knobs

sho

uld

be

placed

in

the "RAISE"

posit

ion.

It

is

recommended

that

a

speed

of

15 MPH

should

not

be

exceeded

since

the

air

suspension

in

this

position

has

maximum

pressure

supplied.

29

EMERGENCY

OPERATION

In

the

event

of

total

air loss (" LOW

AIR"

warning

light

illuminated)

for any

reason,

the

vehicle

may

be

driven

at

a

speed

of

5-15

MPH

(depending

on

road

surface)

with

the

rear

of

the

vehi

cle

in

the

fully

"DOWN"

position.

Care

should

be

exercised

since

ground

clearance

at

the

rea

r

will be

at

a mi

nimum

. Vehicle

should

be

taken

to

nearest

dealer

.

Depending

on

the

type

of

failure

, it

may

be

possible

to

add

air

to

the rea

r

suspension

air

reservoir (

shop

air fill valve

located

on

reservoir-see

illustration)

by

filling reservoir

at

a local gas

stat

ion (DO

NOT

EXCEED

120

PSI).

MAINTENANCE

No

routine

maintenance

is

required

on

the

Power

Level

System.

Refer

to

SERVICE

AND

MAINTENANCE

section

later

in

this

manual

for

"Rear

Suspension"

Maintenance

.

WINDOWS

The

side

windows

in

the

driver's

compartment

are

operated

by

squeezing

the

latch

and

sliding

the

window

to

the

rear.

The

optiona

l sliding

windows,

if

equipped

with

center

mounted

latches,

are

operated

as follows:

Rea

r Suspension

Air

Compone

nts

(with

Vehicle

Grille Rem

oved)

LATCH PLATE

Window Latch (Unloc

ked)

SLIDING

WINDOWS

The horizontal and optional vertical

sliding windows in

your

vehicle are

equipped

with

a locking

typ

e latch.

To

Open

Window

Unlock window lat ch by pushing upward

on

button,

until latch lever

is

exposed (see
illustration). Firmly grasp latch plate, and
slide window to desired

position

(see

illustration).

To

Close

Window

Grasp latch, and slide window

to

the

fully closed position. Push downward

on

Opening Window

30

latch lever, until

button

is

exposed (see

illustration)

to

lock sliding window in

position.

To

be

sure window latch assembly

is

locked, depress latch plate and carefully

attempt

to open window.

If

window

opens

repeat

"To

Close Window" procedure.

If

window lat

ch

assembly still does

not

lock

return vehicle

to

your

dealer

for

service.

ONAN

MOTOR

GENERA

TOR

IMPORTANT:

Before operating

motor

generator

see

the carbon

monoxide

caution

at

the

beginning

of this section.

The

motor

generator

is

located in

an

exterior

compartment

in

the left rear

comer

of

the vehicle.

The unit

is

mounted

on slides and can

be

puJied

out

like a drawer for ease in

servicing the unit.

To

slide

out

the

unit

depress the

buttons

on

the

two

latches.

Then

pull

up

on

safety latch

in

upper

right-hand corner and pull unit

out.

OPERATING

INSTRUCTIONS

The unit can be started from a

START-STOP switch

that

is

located

on

the

right side

of

the generator.

Be

su re

the

crankcase has been filled with oil

to

the

"F''

full mark

on

the dipstick. Check oil

only when the

motor

generator

is

not

operating.

Window Latch

(Locked)

The

START-STOP

switch

is a

three-position rocker switch.

By

pressing the

top half

of

the switch the starter on

the
motor generator will be activated, hold in
the switch until

the

unit is started.

The

switch should then be released.

To

stop

the unit depress

the

bottom

half

of

the
switch, and hold in until the unit comes
to

a full stop.

IMPORTANT:

If

the

motor

generator

has

been

running

with

a load

disconnect

the

load and

allow

for

a few minutes

(with

no-load

before pushing STOP

button.

connected,
it

to

run

connected)

The circuit breaker

on

top

of

the

unit
will trip when the demand for electricity
in amperes exceeds the

motor

generators

capabilities.

If

the circuit breaker does trip,

remove part

of

the

electrical load and reset

the breaker.

HOUR

METER

Located

to

the

right

of

the

motor

generator.

The

HOUR-METER indicates total

amount

of

hours

motor

generator has operated. Tllis gauge

will aid in determining when the

motor

generator

should receive periodic inspections, maintenance

and service parts replacements.

HIGH

TEMPERATURE

OPERATION

Make sure

that

nothing obstructs air

flow

to

and from

the

unit.

Keep cooling fins clean. Motor generator

housing

should

be

unaltered

and

undamaged.

LOW

TEMPERATURE

OPERATION

1.

Use

correct SAE

temperature conditions.

when engine

is

warm.

No.

Oil for

Change oil

on

ly

2. Keep fuel system clean and battery in
well charged condition.

31

Onan Motor Generator

LOW OIL

LEVEL

If

motor

generator suddenly stops during

a tight

tum

or

sudden stop

of

the

vehicle,

the cause

is

most likely a low oil level.

The unit

is

designed

to

shut-down when

oil level

is

abnormally low. Before
attempting to restart unit, check oil level
and correct as necessary.

DUSTY

AND

DIRTY OPERATION

I. Keep unit clean. Keep cooling system

clean.

Onan Motor Generator Compartment

2.

Service

air cleane

r as

req

uired.

3.

Change

crankcase

oil

and

filter

more

often

than

normal .

4. Keep

governo

r linkage clean.

FUEL

The

motor generator's

fue

l is

supplied

from

the

vehicle's main fuel

tank

.

NOT E:

The

motor

generator

may

be

operated

while

the

vehicle is

underway.

However,

the

vehicle's

gasoline

supply

will

be

depleted

at a faster

rate.

For continuing

sotisfadion

keep

your

vehicle

all

GM.

General

Motors Parts

are

identified

by

one

of

these

trademarks

:

32

SECTION

3

IN

CASE

OF

EMERGE

NCY

FOUR-WAY HAZARD

WARNING

FLASHER

• Use the warning flasher to warn

other

drivers any time

your

vehicle becomes a

traffic hazard, day

or

night.

e Avoid stopping

on

the

roadway, if

possible.

• Turn

on

the

hazard warning flasher

by

push-

ing in

on

the

button

located on the column

just

below the steering wheel. Flasher can

be

actuated with engine ignition either

off

or

on.

• Turn signals do

not

work with hazard

flashers operating.

•

If

the brake pedal

is

depressed,

the

lights will

not

flash

but

remain

continuously lit.

•

To

cancel

the

flasher, pull the

button

out.

EMERGENCY STARTING

• Engine

cannot

be started by towing

or

pushing the vehicle.

•

If

only main (automotive)

battery

is
discharged, set battery switch on
instrument panel on

"BAT BOOST," this
supplies current from the auxiliary
battery.

Return switch

to

"BAT

NORMAl:' position if

jump

starting is

still necessary.

• A vehicle with discharged batteries may
be started by using energy from a

battery in another vehicle- called

"Jump

starting. "

JUMP STARTING

Jump

starting may be dangerous and

should be

attempted

ONLY

if

the

following three conditions are met.

If

they

are

not,

we strongly recommend

that

you

leave

the

starting

to

a competent mechanic.

33

• The battery in the

other

vehicle must

be

12-VOLT

and

NEGATIVELY
GROUNDED, like the batteries in this
vehicle. (Check the

other

vehicle's

owner's manual

to

see

if

it

is.)

•

The

batteries in this vehicle must

be

equipped with FLAME ARRESTOR
TYPE FILLER/VENT CAPS on ALL

Hazard Warning Flasher

Flame Arrestor

Cap

I

BATTERY

TOP

BATTERY

TOP

BATTERY

TOP

GREEN

DOT

ALL DARK

ALL

LIGHT

'--

------------

~

------------

~

CAN

BE

JUMP

STARTED

DO NOT

JUMP

START

Charge

Indicator Conditions

(Maintenance-Free

Battery)

fi

ller

openings

(as

was

the

original-equipment Delco batteries),

or

it

must

be

a sealed-type

battery

which does

not

have filler openings

or

caps. (Each

Delco

battery

flame

arrestor

cap

has a

grey disc

rather

than

a small hole-see

illustration.)

•

If

the

battery

is a Delco sealed-type

battery

without

filler openings

or

caps,

the charge

indicator

MUST BE DARK,

with

or

without

green

dot

showing, see

illustration.

Do

NOT

attempt

jump

starting

if

the

charge

indicator

is light.

CAUTION

Departures

from

these

oonditions

or

the

procedure

below

could

result

in:

(

1)

serious

personal

injury

(particularly

to

eyes)

or

property

damage

from

such caused as

battery

explosion,

battery

acid,

or

electrical

burns;

and/or

(2) damage

to

electronic

oomponents

in

either

vehicle.

Never

expose

battery

to

open

flame

or

electrical

spark-batteries

generate

a gas which is

flammable

and

explosive.

Do

not

allow

battery

fluid

to

contact

eyes, skin, fabrics,

or

painted surfaces- fluid is a corrosive

acid.

FLUSH ANY CONTACTED

34

AREA

WITH

WATER

IMMEDIATELY

AND

THOROUGHLY. Be careful

that

metal tools,

or

jumper

cables

do

not

contact

the

positive

battery

terminal (or metal in

contact

with

it)

and

any

other

metal

in

the

other

vehicle, because

short

circuit

could

occur. Batteries

and

battery

acid should always

be

kept

out

of

the

reach

of

children.

JUMP

START

PROCEDURE

I. WEAR

EYE

PROTECTION and

remove rings, metal

watch

bands, and

other

metal

jewelry.

2.

Set parking brake firmly,

and

place

automatic

transmission in "

PARK" (neutral

for manual transmission) in

both

vehicles;

(don't

let

vehicles touch). Also

turn

off

lights, heater, and all unnecessary electrical

loads.

3.

Attach

one

end

of a jumper

cable

to

the

positive terminal (identified

by

a red

color,

"+",

or

"P"

on

the

battery

case,

post,

or

clamp),

of

the

battery

in

the

other

vehicle

and

the

other

end

of

the

same cable

to

positive terminal

junction

block s

tud

, marked

"VEHICLE

BATTERY

POSITIVE." This is located behind

the

right access

door

above

the

batteries.

4.

Attach one end

of

the remaining

jumper cable FIRST

to

the negative

terminal (black color,

"-

".

or

"N")

of

the

OTHER vehicle's battery, (regardless

of
which vehicle has the discharged battery­and THEN

to

the right radiator mounting

bracket

in

THIS vehicle- thus taking

advantage

of

your battery's flame arrestor

feature, should a spark occur.

5. Start the engine in the vehicle

that

is

providing the

jump

start

(if

it was

not
running). Let run a few minutes , then start
the engine

in

the vehicle

that

has the

discharged battery.

6.

Reverse the above sequence EXACTLY

when removing the

jumper

cables, taking care

to

remove the cable from the right radiator

mounting bracket

in

THIS vehicle

as

the FIRST

step.

ENGINE

COOLANT

CAUTION

•

To

avoid the danger

of

being burned, do

not

remove radiator cap while engine

and radiator are

still hot, because the

cooling system will blow

out

scalding

fluid

and steam und

er

pressure.

•

Do

not

remove

rad

iator cap to check

engine

coolant level; check coolant

visually

at

the

see-through coolant tank.

• Proper coolant level

at

normal engine

operating temperature is between

the

"FULL" and "ADD" marks on the tank.

• Coolant should be added

only

to

the

coolant recovery tank (see SERVICE &
MAINTENANCE section for details).

JACK

USAGE

INSTRUCTIONS

.----~

CAUTION

1. Follow jacking instructions

in

order

to

reduce the possibility

of

serious personal

injury.

2. The jack is

des

igned for use

only

when changing wheels.

3. Never get beneath

the

vehicle when

using jack.

4.

Do

not

start or

run

engine while

vehicle

is

on

jack.

35

Connecting Jumper Cable

to

"VEH

ICLE

BATTERY

POSITIVE"

Stud

INSTRUCTIONS

• Park

on

level surface and set parking

brake firmly.

• Set transmission

in

"PARK"

.

•

Activate Hazard Warning Flasher.

Connecting Jumper Cable

to

Right Radiator Mounting Bracket

Jacking

at

Front

of

Vehicle

Jacking

at

Rear

of

Vehicle

36

• Block

both

front

and rear

of

the

wheel

diagonally opposite

the

jack position.

e Loosen

but

do

not

remove wheel nuts.

e JACKING AT FRONT- Place hydraulic

jack on wood block near energy
abosrbing front bumper bracket. Place

hook

at

flange

of

front cross-member.
Pass chain under bumper and adjust
chain length to snug fit

on

fork

on

top

of

jack.

•JA

CKING AT REAR- Remove fender

skirt

if

vehicle

is

so equipped, using a

No.

2 cross-recessed screwdriver and

9/16"

wrench

or

socket (as shown).

Place hydraulic jack

on

wood block close
to rear suspension bracket (see illus­tration). The hook is placed in the

drainage slot under bracket. Adjust chain

length so link will fit in fork

at

top

of

jack.

• Close valve

at

base

of

jack and insert

jack handle.

• Always operate jack

with

slow,

smooth

motion.

Removing Fender

Skirt

• Raise vehicle so tire

just

clears surface,
repl ace wheel and slightly tighten wheel
nuts

.

• Open valve

at

base

of

jack

to

lower,

then fully tighten wheel nuts. Pr

oper

torque

is 250

foot

pounds.

CAUTION

Use lug wrench provided

to

tighten

wheel nuts securely. (Follow

the

nut

tightening sequence shown in

the

SERVICE

AND MAINTENANCE

section).

At

the

earliest opportunity

have

wheel

nut

torque checked. This

is

necessary

to

help prevent

loosening

or

stripping

of

the wheel

nuts.

Always securely restow

the

spare

tire

assembly (if so equipped)

on

the

spare tire carrier, and return all

jacking equipment

to

its proper

stowage

location. These precautions

will help prevent such items from

becoming dangerous

projectiles

in

the

event

of

an accident.

TOWING

Proper Lifting

and

towing

equipment

is

necessary

to

prevent damage

to

the

vehicle

during

any

towing

operation. State

(Provincial

in

Canada) and local laws

applicable

to

vehicles

to

tow must be
followed. Detailed towing instructions are
available

at

your

MotorHome dealer.

Your vehicle may be towed

on

all SIX

wheels,

at

speeds less than 35

MP

H, for

distances up

to

50

miles, provided

the

final drive, axle, transmission, and steering

system are otherwise normally

operab

le. Use

on

ly towing

equipment

specifically designed
for this purpose following the instructions
of

the towing

equipment

manufacturer. A

separate safety chain system must be used.

For

such towing the steering must be

unlocked, transmission in neutral and

the

parking brake released.

Attachments

must

be

to

engine

front

crossmember. Do

not

attach

to

bumpers

or

associated brackets.

Remember

that

power brakes

and

power

steering assists will

not

be available

when

engine

is

inoperative.

37

Lo

cat

ion for Disconnecting Height

Co

ntr

ol Valve Li

nk

TOWING

AT

FRONT

On vehicles equipped with

the

Power

Level System, turn

the

valve dials , below

the

inst

rument

panel,

to

"HOLD"

position,

thereby

making the

automatic

height valves

inoperative

on

the

rear suspension. On

vehicles

not

equipped with the optional

Power Level System it will be necessary to
disconnect

the

height control valve link

at

the

rear suspension control

arm

(adjacent to

the

shock absorber stud)

on

each side

of

the vehicle.

Raising fr

ont

of

vehicle so front wheels are

four inches

off

the

ground will provide

about

five-inch ground clearance

at

the

rear when

towing.

TOWING AT

REAR

It

is n

ot
towed with
result in
damage.

recommended

that

vehicle be

the rear raised

as

this could

suspension

or

crossmember

FREEING

VEHICLE

FROM SAND,

ETC

.

If

it

becomes necessary

to

rock the

MotorHome

to

free

it

from sand ,

mud,

or

snow, move

the

transmission selector lever

from

"

D"

to "R"

in a r

epeat

pattern

t

REAR

WINDOW

Emergency

Exit

Pull Ring

Towing

Vehicle

38

while simultaneo usly applying moderate
pressure to

the

accelerator. Do

not

race

engine.

For

best possible traction, avoid

spinning wheels when trying

to

free the

vehicle.

The

use

of

GM Liquid Tire Chain

is recommended for

temporary

assistance

when traction is lost

on

ice

or

snow.

CAUTION

Do

not

spin wheels in excess

of

35

MPH

as

indicated

on

the

speedometer. Personal injury

and

severe damage may

result

from

excessive wheel spinning including

tire disintegration

or

differential

failure.

EMERGENCY EXIT

The rear window

of

the

vehicle in an

emergency can be used as an exit.

To

use
the emergency exit, pull the ring located
at the

top

center

of

the rear window until

window seal

is

removed, and

then

push the

gl

ass

out

of

the

frame. Do

not

pull ring

except

in

case

of

emergency.

The

window

is

not

hinged, and

it

is designed to be

pushed

out.

Take care

that

window will

not fall

on

anyone

outside

the

vehicle.

Be

careful

of

possible broken glass

on

ground

when exiting fr

om

the

vehicle.

For continuing satisfaction keep your vehicle

all

GM

. General Motors Parts are identified

by

one

of

these trademarks:

SECTION 4

APPEARANCE

CARE

CARE

AND

CLEANING

OF

INTERIOR

(DRIVER'S

COMPARTMENT)

GENERAL

INFORMATION

Dust and loose

dirt

that

accumulates on

interior fabric trim should be removed

frequently with a vacuum cleaner, whisk

broom

or

soft

brush. Vinyl

or

leather trim

should be wiped regularly

with

a clean

damp

cloth. Normal trim soilage,

spots

or

stains can be cleaned with

GM

cleaners

or

equivalent.

Before

attempting

to

remove spots

or

stains from

upho

lstery, determine as

accurately as possible the

nature

and age

of

the

spot

or

stain. Some spots

or

stains

can be removed satisfactorily with water

or

mild soap solution (refer

to

"Removal

of

Specific Stains" later in this section). For

best results, spots

or

stains should be

removed as soon as possible.

Some types

of

stains

or

soilage such as

lipsticks, some inks, certain types

of

grease,

mustard, etc., are extremely difficult and,

39

in •

~orne

cases, impossible

to

completely

remove. When cleaning this

type

of

stain

or

soilage, care must be taken

not

to

enlarge

the

soiled area.

It

is

sometimes

more desirable

to

have a small stain than

an enlarged stain as a result

of

attempted

cleaning.
The listed cleaners are EXCELLENT

CLEANERS when used properly according
to direct ions

on

containers and are

available through most G.M. Dealerships.

LAP

BELT

CARE

• Clean only with mild soap solution and
lukewarm water.

e Do

not

bleach

or

dye belts since this

may severly weaken belts.

I

G.

M.

CL

EANERS

PART

NO

.

QUANTITY

DESCRIPTION

10502

44 16 oz.

can

G.M.

Fabric

Cleaner

(Solvent

Type)

10504

17

Gallon

can

G.M.

Fabric

Cleaner (Solvent

Type)

1050803

16

oz.

Container

G.M.

Multi-Purpose

Powdered Cleaner

(

Foam

Type)

1050429

6 lb.

can

G.M.

Multi-Purpose

Powdered

Cleaner

(Foam

Type)

INTERIOR GLASS

The interior glass surface should

be
cleaned on a periodic basis for continued
good visibility. A commercial household
glass cleaning

ag

ent

containing ammonia will
remove normal tobacco smoke and dust
films sometimes caused

by

ingredients used

in vinyls, plastics,

or

other

interior trim

materials.

HEHR

WINDOWS

If

your

vehicle is equipped

with

Hehr

windows, identified

by

center

mount

ed

latches, removal and installation

of

screens

to a

id in

cleaning interior glass may be

accomplished

in

the foll

owing manner:

WINDOW

SCREEN

REMOVAL

IMPORTANT:

To

help avoid damaging

screen track ,

DO NOT remove screen

before removing screen tract.

I. Remove upper screen track using a

reasonably

stiff

wire shapped

to

form the

screen track removal tool (as shown).

In

sert

tool

at

outer

end

of

screen track and

separate

track from window frame

assembly. Grasp track and pu

ll

completely

free

of

window assembly.

HEAVY

GAUGE

WIRE

Screen Track

Rem

oval Tool

40

WINDOW FRAME

A

SSE

MBLY

Separating

Tra

ck From Windo w

Frame Asse

mbly (Ty

pical)

Re

moving Screen

Tra

ck ( Typical)

2. Unlock window, slide glass and screen

forward almost to moulding retainers.

3. Lift screen up

into

window frame

assembly. Pull

bottom

of

screen away from

window

and

remove screen.

WINDOW

SCREEN

INSTALLATION

I.

To

install screen, lift screen

up

into

window frame assembly. Slide screen fu

ll

y

rearward.

2. Note

that

screen

track

when

installed

contacts

the

inner edge

of

sliding window

track.

The

screen track has

three

grooves,

and

the

widest groove should face the

outside

of

the

vehicle. Position screen track

in

window

frame assembly

and

slide it

rearward

until

contact

is

made

with

adjacent

upper

screen track .

Seat

track

into

position by pressing track

firmly

up

into

window frame assembly.

3. Slide screen back and

forth

several

times

to

assure

proper

seating

of

track. If

screen

wiiJ

not

slide,

track

is

binding.

Using a small wood bl

ock

and

mallet,

carefully

tap the

track firmly

into

position.

CAUTION

DO

NOT use a screwdriver

to

install

screen

track. The screwdriver may

fracture the window

glass.

CLEANING FABRICS

IMPORTANT:

Be

sure vehicle is we

ll

ventilated while using

any

cleaning agents.

Follow

manufacturer's

recommendations

in

using such products.

CAUTION

Many cleaners may

be

toxic

or

flammable, and their improper use

may cause

personal injury or may

cause damage

to

the interior.

Therefore,

when

cleaning the

interior,

do

not

use volatile cleaning

solvents

such as: acetone, lacquer

thinners, enamel reducers, nail polish

41

L----

---------

Removing Win

dow Screen (Typical)

removen; or such cleaning materials

as laundry soaps, bleaches or

reducing agents (except as noted

in

the

adjacent

fabric

cleaning

instructions

on

stain removal). Nev

er
use carbon tetrachloride, gasoline or
naphtha for

any

cleaning purpose.

CLEANING FABRICS

WITH

CLEANING FLUIDS

G.M.

Fabric Cleaner

(Solvent

Type)

is

excellent

for

spot

cleaning stains containing

grease; oil

or

fats from fabric

type

trim.

Excess stain should be gently scraped

off

trim

material with a clean

DULL

knife

or

scraper. USE

VERY

LITTLE

CLEANER,

light pressure, and clean

cloths

(preferably

cheese

cloth).

Cleaning

action

should

be

from

outside

of

stain

FEATHERING

towards

center

of

stain and constantly

changing

to

a clean section

of

cloth. When

stain is cleaned from fabric , immediately

dry area with an air hose,

heat

dryer

or

heat

lamp

to

help prevent a cleaning ring

(use caution with

heat

dryer

or

heat

lamp

to

prevent damage to fabric material).

If

a

ring forms, immediately

repeat

the cleaning
operation over a slightly larger area with
special emphasis

on

FEATHERING towards

center

of

area.

If

ring still persists, mark

off

adjacent

trim

sections and clean entire

affected trim panel section with G.M.

Multi-purpose

Powdered Cleaner as described

in the following:

CLEANING

FABRICS

WITH

DETERGENT

FOAM

CLEANER

G.M. Multi-Purpose Powdered Cleaner is
excellent for this

type

cleaning and for
cleaning a panel section where a minor
cleaning ring may be left from

spot

cleaning.

Vacuum area thoroughly

to

remove

excess loose dirt.

ALWAYS clean a full

trim

assembly

or

complete trim

section- mask adjacent

trim

along

stitch

or
welt lines. Mix Multi-Purpose Powdered
Cleaner in strict accordance with directions
on

label

of

container- mix proportionally

for smaller quantities.

USE SUDS ONLY

ON

A CLEAN SPONGE

or

SOFT BRISTLE

BRUSH-

DO

NOT

WET

FABRIC

EXCESSIVELY

OR

RUB HARSHLY WITH

BRUSH.

IMMEDIATELY

AFTER

CLEANING WIPE

OFF

ANY CLEANER

RESIDUE

WITH

SLIGHTLY

DAMP

ABSORBENT TOWEL

OR

CLOTH.

IMPORTANT-IMMEDIATELY

AFTER

WIPING, FORCE-

DRY

FABRIC WITH

AIR

HOSE,

HEAT DRYER

OR

HEAT LAMP.

(Use caution with heat dryer

or

heat lamp

to

prevent damage

to

fabric.)

When trim materials

with

a sheen

or

luster finish are

dry,

wipe fabric lightly

with a soft, dry clean cloth

to

restore

sheen

or

luster.

REMOVAL

OF

SPECIFIC

STAINS

CANDY - Chocolate, use cloth soaked in
lukewarm water;

other

than

chocolate, use

42

very

hot

water. Dry

if

necessary, clean

lightly with fabric cleaning fluid.

CHEWING

GUM-Harden

gum with ice

cube

and scrape

off

with dull knife.
Moisten with fabric cleaning fluid and
scrape again.

FRUIT STAINS, COFFEE, LIQUOR, WINE,

SOFT

DRINKS, ICE CREAM AND
MILK-Wipe with cloth soaked in cold
water.

If

necessary, clean lightly with fabric

cleaning fluid.

Soap and water is not

recommended as

it

might set

the

stain.

CATSUP-Wipe with

cloth

soaked in cool

water.

If

further cleaning

is

necessary, use

a detergent foam cleaner.

GREASE, OIL, BUTTER, MARGARINE
AND

CRAYON-Scrape

off

excess with dull

knife.

Use fabric cleaning fluid.

PASTE

OR

WAX

TYPE

SHOE

POLISH- Light application

of

fabric cleaning

fluid.

TAR

- Remove excess

with

dull knife,
moisten with fabric cleaning fluid, scrape
again, rub lightly

with

additional cleaner.

BALL

POINT INK- Try rubbing alcohol.

If

stain remains

after

repeated operations, no

other

measure should be tried.

LIPSTICK-Difficult to
fluid works

on

some
remains after repeated
try

other

measures.

remove. Cleaning

brands.

If

stain

applications, do

not

MUSTARD-Damp

sponge with warm water,

then

rub

detergent

on

dampened stain and

work into fabric. Rinse

with

clean damp

cloth.

Repeat

several times. Some

discoloration may remain.

BLOOD-Wipe

with

clean cloth moistened

with cold water.

Use no soap.

URINE-Sponge

stain with lukewarm soap

suds from mild neutral soap

on

clean

cloth, rinse with

cloth

soaked in cold
water; saturate cloth with one part
household ammonia and five parts water,
apply for one minute, rinse with clean,
wet cloth.

VOMITUS-Sponge with clean

cloth

dipped
in clean, cold water. Wash lightly with
lukewarm water and mild neutral soap.

If

odor

persist

s,

treat area with a water-baking

soda solution

(one

teaspoon baking soda to

one cup

of

warm water). Rub again with

cloth

and· cold water. Finally,

if

necessary,

clean lightly

wi

th fabric cleaning fluid.

EXTERIOR

APPEARANCE

CARE

The best way

to

preserve the finish

is

to keep

it

clean. Normally only frequent

washings are required

to

maintain its

original beauty. Wash

the

vehicle with

either cold

or

warm (never hot) water,

not

in

the

direct rays

of

the

sun and

not

while

the

sheet metal surfaces are hot.

Never wipe

dirt

from dry painted surfaces

because this may scratch

the

finish. The

use

of

strong soaps and chemical detergents

should be avoided. Cleaning agents should

be promptly flushed from

the

surface and

not

allowed

to

dry

or

they may streak

the

finish.

BRIGHT METAL PAR TS

Wash

all bright metal parts frequently

to

all~viate

the destructive forces

of

salt,
calcium chloride, salt air, exhaust gases,
and industrial fallout (which may be
corrosive).

Use lukewarm water and mild soap,

not

with a strong alkali solution, rinse

thoroughly. Avoid use

of

bright metal

polishes containing harmful abrasives.

NO

TE:

In

severe cases, road oil and

tar
may be removed from bright metal parts
by a chemical cleaner which is specified

safe

to

use

on

all acrylic finishes.

A protective coating such as

GM

Chrome

Gard may be applied

on

clean chrome

surfaces which are stain and rust free.

If

necessary, GM Chrome Cleaner and Polish
may

be

used

to

remove

rust

from chrome

plated parts before applying a protective

coating.

43

EXTERIOR

GLASS

Never wipe glass with dry paper or

cloth. Do

not

operate wipers when glass is
dry. Dirt and insects can be removed with
clear water

or

with a mild liquid

household cleaner. The use

of

harsh

abrasives should be avoided.

Periodic

inspection and replacement

of

wiper blades

will reduce

the

possibility

of

the windshield

becoming sera tched and will assure clear

vision under adverse driving conditions.

POLISHING

AND

WAXING

Even though

the

acrylic enamel

on

your

vehicle

is

durable, under certain conditions

it

may

be

advisable

to

wax or polish

your

vehicle to proivde added protection.

Calcium chloride and

other

salts, road oil
and tar, tree sap, chemicals from factory
chimneys and

other

foreign matter may

damage any known vehicle finish

if

allowed

to

remain in

contact

with

the

paint

film.

Prompt

washing may

not

remove

thoroughly these deposits and, particularly
in geographical areas where exposure
conditions are severe.

Properly applied

polished and waxes

of

known quality will

provide

the

best protection. Most

GMC

MotorHome dealers offer polishes or waxes

which can be

of

real value in maintaining

a good paint fmish.

NOTE

: Some chemical cleaners, used for

removing road oil and tars from painted
surfaces, are detrimental

to

acrylic enamel
finishes. When purchasing a cleaner, make
sure

the

instructions

on

the

container

specifically state

that

the contents can be

used on any acrylic enamel finish.

TOUCH-UP PAINT

Nicks and chips

in

paint

surfaces should

be

touched

up

before weathering action

begins.

The

best time

to

detect

them

is

right

after

the

vehicle has been washed.

Touch-Up Paint

to

match

you vehicle

's

color is available

at

your

GMC

MotorHome

dea ler.

UNDERCOATING

Due

to

the

fiberglass and aluminum

body

construction

of

the vehicle added

protection

by

additional undercoating is

not

necessary. However,

if

you

do

wish

to

apply undercoating material,

it

should be

kept

off

of

all moving

or

rotating

parts.

It

should also be

kept

off

air conditioner

fittings,

body

drain holes,

exhaust

systems,

and plumbing.

For continuing satisfaction keep your vehi

cle

all

GM

. General

Motor

s Parts

are

identified by one

of

these

trademark

s:

44

SECTION

5

SERVICE

AND

MAINTENANCE

CAUTION

As with

any

machinery,

extreme

care should

be

taken

when

performing

any

inspection, maintenance

or

repain

so

as

to

prevent

accidental injury .

Improper

or

incomplete servicing could result in

vehicle

operational

problems which may

lead

to

personal injury,

or

damage

to

the

vehicle

or

its

equipment. Should

you have

any

question

about

performing

any

service, have

the

service performed

by a competent

serviceman.

MAINTENANCE

SCHEDULE

For

owner

convenience, a separate
maintenance folder has been provided with
your

vehicle which contains a

complete

schedule

and

brief

explanation

of

the

safety,

emission control, lubrication and

general maintenance

it

requires.

The

maintenance

folder

information

is

supplemented

by

Operating Manual,

Information

folder

vehicle. Read all

full understanding
requirements.

0

FUEL

TANK

FILL

CAP

DOOR

DOOR

ENTRANCE

DOOR

RIGHT

SIDE

LEFT

SIDE

Exterior Co

mpartment

Loc

ati

on

(Typical)

45

this section

of

the

as well as a Warranty

also furnished

with

your

three

publications for a

of

vehicle maintenance

I

ACCESSIBILITY

EXTERIOR

COMPARTMENT

S

Your vehicle has an

entrance

door

on

the

right side and six

compartment

doors.

Their locations are shown

on

the

following

illustrations.

Be

sure

the

doors are secured tightly

to

prevent their opening

after

vehicle

is

in

motion.

There are two

front

access

doors

on

your

vehicle.

Turn

the

latch knob to the

left to release each

door.

Items

that

can

be checked

or

filled through

the

right

access

door

are

the

batteries, engine oil

fill, radiator, radiator cap, engine

coolant

reservoir

and

the

air

conditioner
receiver-dehydrator sight glass (optional).
Items

that

can

be

checked

or

filled

through

the

left access

door

are the

windshield washer reservoir,

brake

master

cylinder, engine oil dipstick

and

the

air

compressor.

Be

sure to secure

the

closing them

by

turning

the

right to prevent

opening

after

the

vehicle

access

doors

after

the

latch

knob

to

the

doors from

is

in

motion.

Right Fro

nt

Access Compartment

46

CAUTION

Before pouring fluid into any
opening anywhere on the vehicle, or
allowing anyone

else

to do

so,

make

certain that the correct filler
opening,

and

type

of

fluid

has

been

selected.

A wrong choice could

result

in

serious

personal

injury or

property

damage

.

Fro

nt

Access Doors

Lef

t Front Access Compartme

nt

1.

Automatic

Transmission

Fluid

Dipstick

and

Fill

Tube

2.

Generator

3.

PCV

Filter

4.

Engine

Temperature

Sending

Unit

5.

Thermostat

Housing

6.

Carburetor

Attaching

Bolts

(4)

7.

Distributor

8.

Thermal

Vacuum

Switch

9.

Carburetor

Choke

Coil

Cover

10.

Engine

011

Fill

Hose

and

Tube

Assembly

11.

PCV

Valve

12.

Air

Conditioning

Compressor

(Optional)

Engine Compartment

ENGINE ACCESSIBILITY

Access

to

the

engine is provided by an

engine cover located between

the

driver

and passenger seats.

The

cover

is

designed

to

be secured

at

the

two

rear corners by

securing bolts.

The

securing bolts have rings

47

and may be loosened

or

tightened by hand

or

screwdriver.

The

cover

is

designed

to

be

secured

at

the

front

by a retaining lip.

To remove

the

engine cover loosen the

securing bolts and lift

up

using

the

wire

loops. To install the engine cover place

the
cover in its frame and slide forward as far
as possible. Tighten the securing bolts.

Removing Engine Access Cover

ENGINE

COMPARTMENT

LIGHT

The

optional engine

compartment

light

(located behind ri

ght

front access

door)

is

turned ON when access

door

is opened.

The light, attached to a

25-foot

cord, may

be removed from engine

compartment

for

use as necessary.

CAUTION

It

is

essential

that

when installing

the

engine cover it be fully seated

to

its seal

and

secured

by

the

lip

at

its forward edge

and

the

securing

bolts

at

its rearward edge.

Do

NOT

allow cables,

carpeting, floor mats

or

any

other

material

to

interrupt

the

seat between

the

cover

and

the

engine compartment. If

the

engine

cover

is

not

correctly installed

and

seated, engine exhaust could leak

into

the

passenger

compartment

creating a safety hazard (see

the

carbon monoxide caution

at

the

beginning

of

the

section

on

STARTING

AND

OPERATING

VEHICLE).

If

the

engine

must

run

with

the

cover

off

for maintenance

purposes, care

should

be

taken

to

assure

that

the

vehicle's interior

is

well ventilated.

HOISTING

INSTRUCTIONS

A twin post hoist

of

sufficient capacity

and with proper adapters

and/or

fittings

must be used.

Front

hoisting position

is

the

front

engine crossmember.

FRONT ENGINE

CROSSMEMBER

REAR

SUSPENSION

BRACKETS

- DENOTES A PPROVED LIFTING POINTS

Vehicle Hoisting Points

48

Rear hoisting must be

done

at

the

rear

suspension brackets.

If

an

"I"

beam type

adapter

is

used

it

should be approximately

82

inches in length

to

gain adequate

support

at

suspension bracke t

s.

If

the

vehicle is

to

be placed

on

safety

stands for maintenance

or

repairs, the

hoisting points

shou

ld be used.

CAUTION

To

help avoid serious damage

to

yo

ur vehicle,

the

vehicle should be

raised

only

on

twin post hoists

of

15,

000

pounds

or

more

total

rated

capacity,

at

the

suspension points

noted

(see diagram). Before raising,

check overhead

clearance

to

see

that

is

is suffici

ent

for

the

vehicle. DO

NOT

use

the

vehicle jack for

hoisting

or

maintenance.

It

is

designed for use

only

when changing

tires.

LUBRICATION

DETAILS

ENGINE

ENGIN ES OIL

AND

FIL

TER

RECOM

MENDATIONS

• Use only

SE

engine oil.

• Refer to Maintenance Schedule folder for
oil

change and filter replacement

intervals.

• See

your

GMC MotorHome dealer for

advice

on

the

frequency

of

oil and filter

changes under unusual driving conditions.

The recommendations in

the

Maintenance

Schedule folder apply

to

the first change
as well as subsequent oil changes. The oil
change interval for

your

vehicle's engine is

based on

the

use

of

SE oils and quality

oil filters.

Oil change intervals longer

than
those listed will seriously reduce engine life
and may effect

GMC

Truck & Coach's

obligation under

the

provisions

of

the

New

Vehicle Warranty.

A high quality

SE oil was installed in

your engine

at

the factory.

It

is

not

necessary

to

change this factory-installed oil

prior

to

the

recommended normal change

period. However, check the oil level

more
frequ ently during the break-in period since
higher oil consumption

is

normal

until

the

piston rings become seated.

NOTE: Non-detergent and

other

low

quality

_

oils

are

specifically

not

recommended . Only the use

of

SE

engine

oils and proper oil and filter

change

intervals assure

you

of

continued proper

lubrication

of

your

vehicle's engine.

REC

OMM

ENDED SAE VISCOSITY

• Single grade oils are preferred, however,
multigrased such as

SAE I

OW-30

or

l

OW-40

are also acceptable.

• SAE SW-20

oils·

are

not

recommend for

sustained high speed driving.

• SAE SW-30 oils (if available) may be

used

if

extreme

low temperatures are

anticipated.

49

SUPPLEMENTAL

ENGINE OIL ADDITIVES

The regular use

of

supplemental additives

is

specifically

not

recommended and will

increase

operating

costs.

However,

supplemental additives are available

that

can

effectively and economically solve certain

specific problems

without

causing

other

difficulties

.

For

example,

if

higher

detergency is required

to

reduce varnish
and sludge deposits resulting from some
unusual operational difficulty, a thoroughly
tested and approved additive-

"Super

Engine

Oil Supplement"

-is

available

at

your

GMC

MotorHome dealer. In

the

event

of

an

operational probl

em,

consult

your

dealer for

advice before using supplemental additives.

CHECKING

OIL

LEVEL

The engine oil should be maintained

at

the proper level. The best time to check

it

is before operating

the

engine

or

as

the

48

.9

120

4

3.3

110

37 .8

100

32

.2

90

26

.7

80

21.1

70

NORMAL

15.6

60

10.0

so

4.4

40

0

32

FREEZING

6.7 20

12.2 10

17.8 0

ZERO

23

.3 10

28

.9

20

31.7

2S

34 .4

30

c

Engine Oil Viscosity Chart

Removing

Engine Oil Dipstick

Removing

Transmission Dipstick

Transmission Dipstick

50

Engine Oil Dipstick

last step in a fuel stop. This will allow
the normal oil accumulation in

the

engine

to

drain back into the crankcase.

To

check

the level, remove

the

oil level dipstick

located inside the left

front

access door,

wipe

it

clean and reinsert

it

fully for
accurate reading. The oil level dipstick is
marked

"

FULL"

and

"ADD."

The oil level
should be maintained with in the margin,
neither going above the

"FULL"

line nor

below

the "ADD"

line. Reseat

the

dipstick

firmly after taking the reading.

One

(1)

quart

will raise

the

oil lever from

"ADD"

to

"FULL."

NOTE: The oil dipstick

is

also marked

"US

E SE ENGINE

OIL

,"

as

a reminder

to

u

se

only SE oils.

TRANSMISSION

The transmission dipstick and fill tube

is

located under

the

engine access cover

on

the left side

of

the

engine.

Use only automatic transmission fluids

identified with

the

mark DEXRON

®II

These fluids have been specially formulated

and

te

sted for use in

your

automatic

transmission , and are available from

your

GMC MotorHome dealer

or

local service

station.

VI

REAR

SUSPENSION

(2

FITIINGS

RIGHT

AND

LEFT}

SIDE

OF

VEHICLE

~

~

STEERING

COLUMN

TO

GEAR SHAFT ASSY.

DRAG LINK ASSY.

(2

FITTINGS)

(2 FITIINGS)

-oil'(

,FRONT

l.H.TIE

ROD

(2 FITIINGS)

FRONT SUSPENSION

UPPER

AND

LOWER

-----t~

~~,_,_

~.,.

BALL

JOINTS

(2 FITIINGS RIGHT

AND

LEFT

SIDE

OF VEHICLE

Location

of

Chassis Lubrication Fittings

STEERING RELAY

LEVER

(1

FITIINGJ

Replacing Transmission Oil Filter

Final Drive Cover

Removal

Checking Power Steering

Fluid Level

52

Check

the

fluid level

at

each

engine oil

change period.

To

make

an

accurate

fluid

level check:

l.

Drive vehicle several miles, making

frequent

starts and

stops,

to

bring

transmission

up

to normal operating

temperature

{approx. 190-200°

F.)

{88-93° C.).

2. Park vehicle

on

a level surface.

3. 'Apply parking brake.

4. Place se lector lever

in

"PARK"

and

leave engine running.

5.

Open

all windows,

then

remove engine

cover.

6. Remove

dipstick

a

nd

wipe clean.

7.

Reinsert

dipstick until

cap seats.

8.

Remove dipstick and

note

reading.

If

fluid level is

at

or

below

the

"ADD"

mark,

add

sufficient fluid

to

raise the level

to

the

"FULL"

mark.

One

pint

raises

the

level from

"ADD"

to

"FULL."

Do

not

overfill. Refer

to

the

Maintenance Schedule

folder for servicing interval.

TRANSMISSION OIL

AND

FILTER

REPLACEMENT

NOTE: Have a drain pan ready as

lubricant will begin

to

drain as bolts are

loosened.

1.

Remove

(13)

bottom

pan attaching

screws.

2. Remove

bottom

pan

and

discard

gasket.

3. Remove and discard oil filter

assembly.

4. Install new

0-ring

seal

on

new

filter

and

intake

pipe and filter assembly

and

install.

5.

Using a new pan gasket, install pan.

Torque

attaching screws to 12 foot-pounds.

6. Add

four ( 4)

quarts

of

DEXRON ® II

automatic transmission fluid and ch

eck

fluid

as noted above.

FINAL DRIVE

FINAL

DRIVE

LUBR

ICANT

REPLACEMENT

I.

Remove

(10)

cover

attaching

bolts.

Have a

drain

pan

ready as

lubricant

will

begin

to

drain

as

bolts

are

loosened.

2.

Remove

cover

and

allow

lubricant

to

drain.

Discard

old

gasket.

3. Using a

new

cover

gasket

, install

cover.

Torque

attaching

bolts

to

24-

foot

pounds.

Shield

to

be

bent

over

breather

hole.

4.

Add

four

pints

of

recommended

lubricant

through

fil]

plug hole

or

fill

until

lubricant

level is

at

the

plug

hole. Install

fill plug.

NOT

E:

Use

SAE

80W

or

SAE80W-90

GL-5

Gear

Lubricant.

(For

those

vehicles

operated

in

Canada

, use

SAE

80W

GL-5

Gear

Lubricant.)

STEERING

SYSTEM

POWER

STEERING

SYSTEM

Check

the

fluid level

in

the

power

steering

pump

reservoir

at

each

oil

change

period.

This

requires

the

removal

of

the

engine

access cover.

The

reservoir is l

ocated

near

the

Delcotron.

Add

GM

Power

Steering

Fluid

(if

GM

Power

Steering

Fluid

is

not

available,

DEXRON

®II

Automatic

Transmission

Fluid

may

be

used)

as

necessary

to

bring level

into

proper

range

on

the

filler

cap

indicator

depending

on

fluid

temperature.

If

at

operating

temperature

[approx.

lSO

·F.

(66•C.)-hot

to

the

touch]

fluid

should

be

between

"HOT"

and

"COLD"

marks.

If

at

room

temperature

[approx

.

70•F. (21 •C.)] fluid

should

be

between

"ADD"

and

"COLD"

marks.

The

fluid

does

not

require

periodic

chang

ing.

STEERING

LINKAGE

The

steering

linkage

(tie

rods)

and

suspension

shou

ld

be

lubricated

, using a

Lithium

Soap

Multi-purpose grease

that

53

Checking Brake Master Cylinder

meets

GM

Specification

6031-M,

at

every

oil change. Seals

should

be

che cked for

damage

(see

Maintenance

Schedule

folder).

BRAKE

SYSTEM

BRAKE

MASTER CYLI

NDER

The

master

cyl

ind

er

is locat

ed

behind

the

left-side access

door

on

the

front

of

the

vehicle.

The

fluid level in

the

master

cylinder

should

be checked

at

each oil

change.

Wipe

off

the

brake cylind

er

filler

cap

and

unsnap

the

retainer. A low fluid

level

in

the

front

brake

master

cyli n

der

reservoir

could

be

an

indi

cator that

the

disc

brake

pads

need

replacing.

The

fluid

level

must

be

maintained

at

1 /

4-inch

below

the

top

of

each

reservoir

with

Delco

Supreme

No.

11

or

DOT-3 Brake

Fluid

or

equivalent. When replacing the

cap

be

sure

to

fasten

the

retain

er

securely,

taking care

not

to

let

dirt

enter

the

reservoirs.

BLEEDING

BRAKES

The

need

for bleeding brakes is generally

indicated

by

springy,

spongy

pedal

action.

Pressure bleeding

equipment

must

be

used

and

a

definite

bleeding

sequence

and

procedure

must

be followed.

Consult

your

GMC

MotorHome

dealer.

SERVICING

DETAILS

Coolant Recovery Tank (Typical)

ENGINE COOLING SYSTEM

The recovery type cooling system is

standard

on

all vehicles covered by

this

manual.

The

coolant expands

with

rising

temperature and

the

overflow

is

collected

in

the

recovery tank. When

the

system

temperature drops,

the

coolant

is

drawn
back into the radiator. The cooling system
has been filled

at

the factory with a

high-quality, inhibited, year-around coolant

that meets

the

standards

of

General Motors

Specification 1899-M. This coolant solution

provides freezing protection

to

- 20•F.

(-29•C.)

(-37oC.

in Canada), and it has

formulated

to

be used without replacement

for

period specified in Maintenance

Schedule folder, providing

the

proper

concentration

of

coo

lant

is

maintained.

Location

of

Radiator

Cap

54

COOLING

SYSTEM

CARE

Checking Coolant Level

Open right front access cover. Do not

remove radiator cap

to

check coolant level,

but

check visually in

the

"see

thru"

coolant recovery

tank

as

frequently as

necessary. Level should be

at

the

"COLD"

mark on

the

recovery tank when the

system

is

cold; and

at

the

"HOT"

mark

at
normal operating termperature. Add a
50/50

mixture

of

high-quality ethylene

glycol anti-freeze and water

to

the

recovery

tank for coolant additions. If frequent

additions are required, see

your

dealer for

a cooling system check.

NOTE :

If

the

recommended quality

antifreeze

is

used, supp lement

al

inhibitors

or

additives claiming

to

provide increased

cooling capability are not necessary. They

may be detrimental

to

the efficient

operation

of

the system, and represent an

unnecessary operating expense.

Annual Service

The cooling system should be checked

each year as follows:

1.

Wash radiator cap and filler neck

with clean water.

2.

Check coolant for proper level and

freeze protection.

3.

Test system and radiator cap for

proper pressure holding capacity (9 psi).

If

required, use cap designed

by

AC for

coolant recovery systems and specified for

your

vehicle.

4. Tighten hose clamps and

inspect all

hoses. Replace hoses every

24

months,

earlier

if

swollen, checked

or

otherwise

deteriorated.

5. Clean frontal area

of

radiator

core

and air conditioning condenser.

Dra

ining and Refilling

The

cooling system should be drained,

flushed

and

refilled using the following

recommended

procedure

at

intervals

specified in

the

Maintenance Schedule

fo lder.

l.

Remove radiator cap when engine is

cool:

•

Rotate

cap slowly

detent

(Do

not

rotating).

counterclockwise

to

press

down

while

• Wait until residual pressure (indicated
by a hissing

sound)

is

relieved,

then

press down

on

cap and continue

to

rotate

counterclockwise.

CAUTION

To

avoid the

danger

of

being

burned, do not remove radiator

cap
while engine and radiator are still
hot

because

scalding

fluid and

steam

will be blown

out

under

pressure.

2. Run engine, with

radiator

cap

removed, until upper radiator hose

is

hot

(indicates

thermostat

is open).

3. Stop engine

and

open radiator

drain valve to drain

coola_nt. (Operation

may be speeded

by

removing drain plugs

in the block.)

4.

Close valve (install bl

ock

drain plugs,

if

removed) and add sufficient wat

er

to

fill

system.

5.

Repeat steps

1,

2, 3,

sufficient number

of

times

drained liquid

is

nearly colorless.

and

until

4 a

t

he

6. Allow system to drain completely

and then close radi

ator

drain val

ve

tight

ly.

(Install block drain plugs,

if

removed.)

7. Remove recovery cap leaving hoses

in place. Remove coolant recovery tank,

55

Radiat

or Drain Plug

empty

fluid, scrub and clean

bottom

and

sides

of

tank with detergent and water,

flush we

ll

with clean water, drain and

reinstall.

8. Add sufficient ethylene glycol

coolant, meeting

GM

specification 1899-M,

to

provide the required freezing and

corrosion

protection

- at least a 50 percent

solution

(-3

4oF.) (-37oC.). Fill radiator

to

the

base

of

the

radiator

filler neck and

bring level

of

coolant

in the recovery tank

to

the

"FULL

HOT" mark. Reinstall

recovery

tank

cap.

9. Run engine, with radiator cap

removed,

unti

l radiator upper hose becomes

hot.

10. With engine idling, add coolant

to

radi

ator

until level reaches

bottom

of

filler

neck; insta

ll

cap making certain arrows line

up with overflow tube.

Owner Responsibility

It

is

the

owner's responsibility to:

•

Mainta

in

cooling

system

freeze

pr

otec

tion at - 20oF. (-290C.)

or

below

to

ensure

protection

against corrosion

and loss

of

coolant from boiling , even

though freezing temperatures are

not

expected.

• Add

ethylene

glycol base

coo

lant

that

meets

GM

Specification 1899-M when

coolant

additions are required because

of

coolant

loss

or

to

provide additional

protection

against

freezing

at

temperatures

lower

than -20•F (-2

9° C.)

(- 37• C. in Canada).

NOTE: Al

cohol

or

methanol

base

coo

lants

or

plain water are

not

recommend~d

for

your

vehicle

at

any

time.

THERMOSTAT

The cooling system

is

protected

and

controlled

by a thermostat

installed in

the

engine coolant

outlet

to

maintain a

satisfactory operating

temperature of

the

engine. This

thermostat

is

designed for

co

ntinuous

use

through

both

winter

and

summer and need

not

be

changed

seasona lly. When replacement

is

necessary,

Delco parts are recommended.

ENGINE

FUEL

SYSTEM

FUEL

REQUIREMENTS

Your vehicle's engine

is

designed to

operate

on

un

leaded gasoline

which
minimizes spark plug fouling and emission
control system deterioration. Regular grade
leaded gasoline should be used

only

when

needed

to

eliminate

knock

, a metallic

rapping

noise generated during

the

combustion process.

The

engine does

not
require Premium grade fuel. Thereafter, its
use would be an unnecessary additional
expense.

If

knocking persists, consult

your

authorized dealer. Continu

ous

or

excessive

knocking may res

ult

in engine damage and

c

onstitutes

misuse

of

the

engine

for

which

the

manufacturing

division is

not
responsible

under

terms

of

the

new

vehicle

warranty.

Use a gasoline

of

at

least

87

average

octane

number

(Research

octane

plus Motor

octane

divided

by

two.) The gasoline

should have a Research

octane

number

of

at

least 91, and a Motor

octane

number

of

at least 83.

The

average

octane

number

of

each gasoline

is

posted

on

service

station

pumps

in accordance

with

regulations issued

by

the

Federal Energy

Administration.

56

FUEL

SYSTEM

The vehicle has two gasoline tanks

of

approximately 25 gallons each and fuel

switching device (see

"FUEL

SELECTOR"

switch) which aJlows

the

driver

to

switch

from

the

main

tank

(when

empty)

to the

auxiliary tank.

The gasoline fuel filler

compartment

is

located on

the

left side

of

the

vehicle,

directly

under

the driver's window.

CAUTION

It

is

important that all pilot

lights

be

turned off

and

open

flames kept

away

when

filling the fuel

system

to

help

reduce

fire

hazard

.

GAS

CAP-

The cap

is

equipped with a

double set

of

locking tangs.

To

Remove:

•

Rotate

cap one-ha lf

turn

counterclockwise

to

clear

the

first set

of

tank

s from the

slots inside the filler neck. This will
allow

any

residual pressure

to

escape.

• Pull the cap outward and

rotate

one-quarter

tum

counte

rclockwise

to

clear

seco nd set

of

tangs.

Then

remove

the

cap.

•

To

install, reverse this procedure.

NOTE:

If

the gas cap requires a

replacement,

on

ly

a cap with

the

same

features should be used. Failure

to

use the
correct cap can result in a serious
malfunction

of

the

system. Correct

replacement caps

may

be

obtained

from

your

GMC

MotorHome

dealer.

IMPORTANT:

If

automat

ic gasoline pump

nozzle shuts

off

before

both

fuel tanks are

full, it

is

recommended

that

a delay

of

approximately I minute be held

prior

to

continuation

of

filling tanks. Automatic

nozzle should then

be

adjusted for a

slower fuel feed,

to

fill remaind

er

of

tanks.

CARBURETOR

To

obtain

maximum

engine performance

and fuel

economy,

carburetor

idle speeds

should be checked as

recommended

in

the

Maintenan ce Schedule folder. If

the

engine

stalls, idles too fast

or slow,

or

idles

roughly,

the

following

adjustments

should

be performed. However,

if

the

above

symp

toms

persist it

is

recommended

the

vehicle be

taken

to a GMC

MotorHome

dealer.

NOTE: Refer

to

Tune-up label on engine

for

co

rrect specifications.

Fuel Filter

To

replace

carburetor

filter,

disconnect

fuel line, remove filter

nut

, gasket, filter,

and spring. Install spring and

element

(open

end

of

filter facing toward filter

nut).

Install

gasket; tighten

nut

to

18

foot-pounds

torque.

IMPORTANT: Tightening fuel inlet
nut

beyond

specified

torque

can

damage nylon gasket.

ENGINE

AIR

CLEANER

The

air cleaner is a disposable

type

element. Replace

the

element

as specified

in

the

Maintenance Schedule folder. Do

not

wash, oil,

or

clean with air hose.

The

air

cleaner

will require

more

frequent

service

under

dusty

conditions.

Your

GMC

MotorHome

dealer can advise

you

on

the

proper interval. When

replacement

is

necessary,

an

AC

ACron air filter

element

is

recommended.

CAUTION

DO NOT remove

the

engine air

cleaner unless

temporary

removal is

necessary

during

repair

or

maintenance

of

the

vehicle. When

the

air cleaner is removed, backfiring

can cause fire in

the

engine

compartment.

Gasoline Fuel Filler Compartment

SPRING

GASKET

INYLON)

GASKET

END

Fuel Filter Components

57 Removing Engine

Ai

r Cleaner Element

Mo

tor Generator Compartment

CHASSIS

ELECTRICAL

SYST

EM

BATTERIES

There are

two

Delco Batteries used for

the

chassis and interior

of

the

vehicle. These are

located behind the right

front

access door. The

optional

Motor

Generator cranking

battery

is

located in

the

storage or

motor

generator

compartment al

ong

with

the

Motor Generator

and the

hour

meter.

It

is important

that

these batteri

es

receive

the

following care:

1.

If

the

battery

has flame arrestor

type

filler/vent caps, check

the

fluid

lev

el in

each cell at each engine oil change interval

and more

often

in

hot

weather. (To

do

this

it

may

be

helpful to use a small hand

mirror.) Add only colorless, odorless

drinking water

or

distilled water

to

bring

the level

to

the

split-ring in

the

filler

opening.

DO NOT OVERFILL.

2. The batteries may be maintenance-free

type batteries, identified by

the

absence

of

vent plugs. Water never needs

to

be

added

to

the maintenance- free batteries. A charge

indicator in the cover

of

the battery

indicates the state

of

charge. Check

the

charge indicator

at

each engine oil .change
interval. (A small hand mirror may be
helpful in reading

the

indicator.)

•

If

the

charge indicator

is

dark and has a

green dot in

the

center, the

battery

is

sufficiently charged.

• If

the

charge indicator is dark and a

green

dot

is

not

visible, have

your

GMC

MotorHome deale r charge

the

battery.

•

If

the

charge indicator appears light,

the

battery must be replaced.

If

the

battery

fails prematurely

and

exhibits a light

indicator condition, have

your

dealer

check

the

charging system

of

the

vehicle.

CAUTION

To

avoid

explosion hazard,

NEVER

attempt

to

charge or jump

start

a maintenance free battery

which exhibits a

light

~

ndicator

condition. Departures from

thb
procedure could result in serious
personal injury or property damage.
For additional

details refer

to

"JUMP STARTING" earlier in this

manual.

B

ATTERY

TOP

BATTERY

TOP

BATT

ERY

TOP

GREEN

DOT

ALL

DARK

ALL

LIGHT

CAN BE JUMP

STARTED

DO

NOT

JUMP ST

ART

Charge Indicator Conditions (Maintenance-Free Battery )

58

3. Keep

your

batteries,

batte

ry cable
terminals, and battery hold-down brackets
clean.

They

should be cleaned every 12,000

miles

or

once a year. Use a brush and a

solution

of

ammonia and water

or

baking

soda and water. Flush

off

with cl

ear

water.

After cleaning apply petroleum jelly

to

petrolatum

to

battery

cable terminals to

help retard corrosion.

4.

If

battery

performance becomes

questionable see

your

dealer.

For

full

Battery

is

time.

voltage requirements a Delco

recommended

at

replacement

CAUTION

Never ex

pose

battery

to

open

flame

or

electric

spa

rk- chemical action in

the battery

generates

hydrogen

gas

which

is

flammable

and

explosive.

Do not allow battery fluid

to

contact

eyes,

skin, fabrics, or

painted

surfaces-fluid

is

a

corrosive
sulfuric acid solution which could
cause

serious

personal

mjury

or

property

damage.

FLUSH

ANY

CONTACTED

AREA

WITH WATER

IMMEDIATELY

AND

THOROUGHLY.

WEAR

EYE

PROTECTION WHEN WORKING ON

OR

NEAR

BATTERY

. Remove

rings

,

metal watchbands

and

other metal

jewelry before worki

ng

on

or around

a battery.

Be

careful

in

using

metal

tools and equipment.

If

such

metals

should

contact the positive battery

terminal (or metal

in

contact with

it)

and

any oth

er

metal

on

the
vehicle, a short circuit may occur
which could

cause

personal

injury.

Batteri

es

and battery

acid

should

always

be

kept out of the

reach

of

children.

For

"Battery

Jump

Starting Procedure"

see IN CASE

OF

EMERGENCY section.

59

DISTRIBUTOR

Distributor maintenance, which

is

the

owner's

responsibility, includes regular

examination

of

the

distributor cap for

cracks, checking condition

of

ignition wires,

and proper ignition timing

at

specified

intervals.

Refer

to

the Maintenance

Schedule folder for additional information.

NOTE

: Refer

to

Tune-up label

on

engine

for correct specifications.

SPARK

PLUGS

The frequency

of

spark plug service

intervals

is

explained in

tl"\e

Maintenance

Schedule folder. Servicing is

the

owner's

responsibility. Before removing plugs, clean

plug wells thoroughly, clean

the

threads

and seats

in

the

cylinder heads

to

assure

proper seating and heat transfer.

HEADLIGHTS

Make a headlight beam adjustment check

a

regular

part

of

your

"Safety
Maintenance" program. Sealed-Beam units
are No.

6014

which are equipped with

ground guide points for

the

use

of

a

mechanical aiming device.

Your authorized

dealer

is

best qualified to adjust your

headlights.

Headli

ght

Replacement

/

GLOVE COMPA

RTMENT

DOO

R

Chassis Fuse

Block

Headlig

ht Beam

Adjustment

NOTE:

Cutouts

in

headlight bezel permit

access to

adjustment

screws.

Headlights should be adjusted properly.

The

top

adjusting screw provides vertical

adjustment

and

the

side adjusting screw

provides horizontal

adjustment.

Headlights

should

not

have

to

be

adjusted

after

replacing

Sealed-Beam

unit,

providing

head lights were in

proper

adjustment

before

replacement and adjusting screws were

not

disturbed during replacement.

Headli

ght

Replacement

To

replace a Sealed-Beam

unit,

remove

bezel.

Then

disengage

the

tension spring

using a

stiff

hooked tool.

Rotate

the

Sealed-Beam assembly slightly

to

disengage

mounting

ring slots from groove

of

each

adjusting

screw,

then

pull forward.

Disconnect wiring

at

the base

of

unit

and
separate the Sealed-Beam assembly by
removing

the

two

retaining screws. Install

Sealed-Beam

unit

in reverse

order

of

removal.

60

EX

TERIOR

LIGHTS

All

exterior

lights can

be

easily replaced

by

removing lens, pushing bulb in slightly

and

turning counterclockwise,

except

side
marker lights which are simply pressed in.
Then

, with

new

bulb, reverse

procedur

e.

CHASSIS

FUSES,

FUSIBLE

LINKS

,

CIRCUIT BREAKERS

The

wiring circuits in

your

vehicle are

designed to be

protected

from

short

circuits by a

combination

of

fuses, circuit

breakers, and fusible

th

ermaJ links in the

wiring itself. This helps to

reduce

the

hazard

of

electricaJly-caused fires

in

the

vehicle.

The

fuse and circuit breaker block is

located behind

an

access cover in

the

glove

compartment.

All chassis circuits are

protected

by fuses

or

circuit breakers

located here

except:

e

HEATER

BLOWER- Which has a fusible
link built into harness located behind the
right access

door

near

the

heater

blower

relay.

e HEADLAMP CIRCUITS- Are

protect

ed by
a circuit breaker in the main light
switch. An electrical overload in

the

light

circuit will cause the lights

to

go

on

and

off

or

in

some cases

to

remain off.

If

this condition develops, have the

wiring circuits checked immediately.

Circuit breakers

of

remote

reset

type

can

be reset

only

after

turning

the

affected

circuit

control

switch

"OFF"

for

approximately

40

seconds,

or

by

removing

th

e breaker

from

clips for this period

of

time.

CAUTION

Do

not

touch

body

of

any installed

breaker

of

this

type

with bare hands; if

circ

uit

should happen

to

be

shorted

or

overloaded-

the

breaker body could be

hot and cause a burn.

A replaceable fuse link is located

at

the

battery pickup

junction

block behind the

right access door.

If

an

overload

shou

ld

occur, this link is designed

to

fail (open

circuit) preventing damage

to

the main

wiring harness. Another link

of

the same

wire gauge and length must be installed

in

its place in the event

of

failures.

IMPORTANT:

When replacing fuse

or

circuit breaker, make sure replacement is

of

same

number

as marked on block.

TURN

SIGNAL HAZARD

WARNING

FLASHER

The

turn

signals and the hazard warning

system

both

operate

with

the

same flasher.
This flasher is clipped behind the
dashboard

just

to

the

right

of

the steering

column.

WHEELS

AND

TIRES

TIRES

The factory installed tires on

your

vehicle are designed

to

provide the best
all-around performance for normal vehicle
operation. When inflated as recommended
on

the

"Tire

Pressure Placard," located

on

the

glove

compartment

door

of

your

vehicle,

the

tires have the load carrying

capacity

to

operate satisfactorily

at

all

normal highway speeds.

Tire Care

Tires should be checked regularly for
proper inflation pressure, wear, and damage.
The following information will assist

you

in

properly caring for

your

tires.

Inflation

Pressure

Tire inflation pressures listed

on

the

tire

placard have been selected

to

provide

the

best tire life, riding

comfort

and handling

stability for normal driving conditions.

61

GMC

MOTOR HOME

TIRE

PRESSURES

FOR

8.75-16.5 LOAD

RANGE

0

FOR

LOADS

UP

TO

VEHICLE CAPACITY

FRONT

REAR

PSI COLO

60 60

FOR

SUSTAINED

SPEEDS

IN

EXCESS

OF

65

MPH

INCREASE

TIRE

PRESSURES

10

PSI

COLO

NOTE

TORQUE

WHEEL

NUTS

TO

250

POUND-FEET

AT

500

MILES

AFTER

EACH

WHEEL

REMOVAL

Tire Pressure Placard

The use

of

improper tire inflation
pressures can adversely affect tire life and
vehicle performance.

Too

little air pressure
can result in excessive tire heat, abnormal
tire wear, adverse vehicle handling and
reduced fuel economy.

Too

much air
pressure can result in abnormal tire wear ,
adverse vehicle ride and handling, and
increased susceptibility to dam

age

by road

impacts.

Tire pressures should be checked

at

least

once a

month

(and preferably more often)

or

before long trips

or

when heavily loaded.
The following points should be observed
when checking and setting tire pressures.

1. Cold tire pressure ratings are
applicable when a vehicle has been
inoperative for 3 hours,

or

more ,

or

driven

less than

one

mile.

2. Tire inflation pressure may increase as
much as 6 psi when

hot

(after vehicle has

been driven

10 miles

or

at

speeds

of

more

than

60

MPH).

Do

not "bleed"

or

reduce

pressures when tires are hot from driving.

3. For continuous high speed

(over 65

MPH), increase tire

pressure to 70 psi.

operation

inflation

4. Always use a tire pressure gauge

when checking tire pressure.

Tire Damage & Repair

Tires with cuts, splits

or

cracks

deep

enough

to

expose the fabric, should be
removed from service. Bulges usually
indicate internal damage, and the tire
should be removed. Tires with questionable
damage should be removed from the wheel

and examined by an

expert.

If

an

air loss occurs while driving ,

do

not

attempt

to drive

on

the

deflated tire

more

than

is

necessary to

stop

safely.

Driving even a

short

distance can damage a

tire

beyond

repair.

Temporary

repairs, such

as

"blowout"

patches

or

any repair made from

the

outside

of

the

tire should

not

be

made

except in emergencies. Such

"stop-gap"

devices as plugs and aerosol-type sealants

are good for

not

more

than l 00

miles

of

driving

at

speeds

not

over

50

MPH.

A

permanent

vulcanized repair, plug

or

patch

applied from inside

the

tire, should be

made as soon as possible. Also,

the

installation

of

an inner tube in a damaged

tubless tire

is

not

a recommended repair

procedure.

Replacement Tires

When replacing tires, only the size

(8.75-16.5), load range

("D"),

construction

type

bias-ply steel belted) are recommended

for installation

on

the vehicle.

IMPORTANT:

reco mmended
vehicle.

Radial tires

for installation

are

on

not

the

Use

of

any

other

tire may seriously

affect ride, handling, speedometer

/odometer

calibration, vehicle ground clearance and

tire clearance to

the

body

and

chassis.

The
following also should be considered when
replacing tires:

62

e

To

achieve best aU-around vehicle

performance, bias-ply

and

bias-ply steel

belted tires should

not

be mixed

on

the

same vehicle.

e

It

is

recommended

that

new tires be

installed

in

pairs opposite each

other

(preferab ly the

front

wheels).

• When replacing only

one

tire, it should

be paired with

the

tire having

the

least

wear,

to

equalize braking traction.

Replacement Wheels

Wheels

must

be replaced

if

they

become

bent, are heavily rusted,

if

the

lug

nuts

won't

stay tight,

or

if

they

leak air.

Straightening

bent

wheels

or

using inner

tubes

in

leaking

wheels are

not

recommended repair procedures.

When replacing wheels

for

any reason,

care should

be

taken

to

insure

that

the
wheels are equivalent to those removed in
load capacity, diameter, rim

width,

and
offset. Correct replacement wheels can be
obtained from

your

GMC MotorHome

dealer.

Use

of

any

other

size

or

type

wheel

may adversely

affect

wheel and wheel

bearing life, brake cooling and

stopping
ability, head lamp aim, speedometer-odometer
accuracy,

bumper

height, vehicle ground

clearance and tire clearance

to

the

body

and chassis.

The use

of

used wheels is also

not

if

they

have been run

under

other

sever operating

extended

periods, the wheel

's

been greatly shortened.

recommended ;
overloaded

or

conditions

for

life may have

Tire Warranty

Tires are warranted

by
manufacturers as covered in
Vehicle Warranty folder.

the tire

the New

Tire Traction

A decrease in driving, cornering, and
braking traction occurs when water, snow,
ice, gravel,

or

other

material

is

on

the
road surface. Driving practices and vehicle
speed should be adjusted

to

the road

conditions.

When driving

on

wet

or

slushy roads,

it

is

possible for a wedge

of

water to build

up between

the

tire and road surface. This
phenomenon, known as hydroplaning, may
cause partial

or

complete loss

of

traction,

which adversely affects vehicle control and

stopping ability. To reduce

the

possibility

of

traction loss, the following precautions

should be observed:

1.

Slow

down

during rain-storms

or

when roads are slushy.

2.

Slow

down

if

road has standing water

or

puddles,

3. Replace tires when tread wear

indicators are visible.

4. Keep tires properly inflated.

Snow Tires

If

the

vehicle

is

expected

to

encounter

muddy

or

snowy driving conditions

it

is

recommended

that

front driving wheels be

equipped

with

mud and snow type tires.

If

you

equip

your

vehicle with mud and

snow tires, they should be

of

the

same
size, load range, and construction as
original equipmen t tires.

It

is recommended

that

vehicle speeds be limited to a

maximum

of

75

mph

if

mud and snow

tires are installed.

Tire Wear and Rotation

Uneven

or

abnormal tire wear is usually

the result

of

incorrect inflation pressure,
improper wheel alignment, wheels being
out-of-balance,

or

poor

driving habits.

Under-inflation, over-inflation, incorrect

toe

or

camber

and

fast cornering

produce

different types

of

abnormal wear which can

be diagnosed

by

your

dealer.

63

TREAD

STILL

GOOD

,_

TREAD

WORN OUT

~

Tire Tread

Wear

Indicator

To

equalize wear

it

is

recommended

that
the tires be rotated every 6,000 miles (or
sooner

if

irregular wear develops)

as

shown.

NOTE:

It

is

recommended

that

disc
brake pads be inspected for wear whenever
tires are rotated.

The original

equipment

tires incorporate

built-in tread wear indicators

to

assist

you

in determining when

your

tires have worn

to

the point

of

needing replacement. These
indicators appear as 1 /2-inch wide bands
when tire tread

depth

is 1 / 16-inch

or

less.

When

the

indicators appear in two

or

more

adjacent grooves, tire replacement due to

tread wear is recommended.

SIX

WHEEL PATIERN SEVEN

WHEEL

PATIERN

Tire

Rotation

Diagram

4

3

2

Wheel Stud Tightening Sequence

Tightening

Wheel

Stud

Nuts

When the vehicle is new

or

after

wheels

have been replaced, it is the

owner's

responsibility

to

check wheel stud

nuts

at

500

miles and

after

every wheel removal

thereafter. Nuts

shou

ld be tightened to

250

foot-pounds

torque

in sequence shown.

CAUTION

If

any

wheel experiences a single

stu

d

failure caused

by

a loose-running wheel,

all wheel

studs

should

be

replaced.

A loose-running wheel

may

cause

only

one

stud

to

break,

but

several

more

studs

may

become

fatigued

to

t

he

point

of

failure,

but

not

ac

tually

breaking. Replacing

only the

broken

stud

and

remounting

wheel

will

then

set

the

stage

for

a second

and

possible more serious failure.

If

holes

in

the

wheel have become

elongated

or

enlarged, replace wheel.

64

Tighten wheel stud

nuts

as follows:

1 . Install all nuts loose ly,

then

finger-tigh ten

on

ly the

nuts

marked by

arrows.

2. Tighten all

nuts

to specified

torque

in

sequence illustrated. Never use oil

or

grease

on studs

or

nuts.

See IN CASE

OF

EMERGENCY section

for procedure used

to

change tire.

FRONT WHEEL BEARING

The

front

wheel bearings should be

cleaned, inspected

and

repacked

at

intervals

specified

in

the

Maintenance Schedule

folder.

This

operatio

n requires special tools

and should be performed by

your

.GMC

MotorHome

service

outlet.

REAR

WHEEL

BEARING ADJUSTMENT

A periodic

rear

wheel bearing repack is
required as indicated in Maintenance
Schec.lulc

folc.ler.

These bearings should

be

cleaned and repacked

with

Lithium Soap

Multi-Purpose

Grease

Meeting

GM

Specification 6031-M

or

equivalent.

The

adjustment

of

the

bearing

must

be

done

with

the·

wheel

off

the floor, and

rotating the wheel while tightening

nut.

At

this time

make

the

torque

readings as

follows:

1.

Tighten adjusting

nut

with a torque

wrench to 25-30

foot-pounds

with

wheel

rotating

to ensure

that

all parts are

properly seated and threads are free.

2. Back

off

nut

one-half turn. Re-tighten

nut

finger-tight.

3.

If

unable to install
finger-tight position, back
then

secure with

cotte

r pin.

cotter

pin

at

off

one slot,

4.

End

play shou ld be .

001"

to

.005".

Also

at

this interval

the

rear

suspension

control

arms should be lubricated. This is

accomplished

at

the

fittings between

the

rear

wheels.

FRONT

SUSPENSION

The

front suspension consists

of

control
arms, stabilizer bar, shock absorbers and a
right and left torsion bar.

The

front

suspension

components

are designed

to

provide satisfactory service, ride, and

handling

if

not

overloaded and adjusted

to

specified vehicle

front

end

ride height.

No maintenance

other

than

lubrication

is

normally required. Refer

to

lu

brication

information given earlier

in

this seciton for

intervals and lubrication points.

The

front

of

the

torsion

bar

is

attached

to

the

lower

control

arm.

The

rear

of

the

torsion

bar

is

mounted

into

an adjustable

arm. The

front

ride height

is

controlled

by

this

adjustment.

The simplest way

to

adjust

is

to move

arm slightly

to

achieve ride height and

drive unit a few blocks so as

to

overcome

delaying action.

NOTE: Ride height

ts

measured from

top

of

elongated slot

in

frame rail

to
ground level. Tire inflation should be
checked prior to making

any

ride height

adjustment.

Ride hieght should be adjusted by

ratsmg

vehicle

to

relieve strain

on

adjusting bolt.

Lubricate adjusting

bolt

with

chassis grease.

Adjustment

is

made

by

repositioning

adjusting

bolt

to wind-up and unwind

..

FRONT

24 3/

8"

FRAME

I

GROUND

LEVEL

FRONT

RIDE

HEIGHT

13

1/8" ± 1/4"

Location-Front

Ride

Height

Adjustment

torsion bar. Whenever ride height is
changed, be sure to check front end
alignment and readjust if necessary.

NOTE: Overloading and incorrect ride

height can create serious problems and
shorten

the

service life

of

the vehicle.

Adjust

front

suspension ride height to

specifications shown.

REAR

SUSPENSION

The rear suspension consists

of

control
arms, mounting brackets, air bellows, shock
absorbers, air compressor, air reserve

tank

,

and height

control

valves. The system

operates automatically as load varies, and

is

designed

to

maintain a

constant

frame

height.

23'

MODEL

40 3/8"

26'

MODEl

56

3/8

"

REAR

RIDE

HEIGHT

11 11/16

" ± 1/ 4 "

Checking Vehicle

Ride

Height

65

VALVE

ARM

AD

JUSTMENT

NUT

Location-Rear

Ride

Height

Adjustment

NOTE: Ride height

is

measured from

top

of

elongated slot in frame rail

to

ground level. Tire inflation should

be

checked

prior

to

making

any

rid e height

adjustments.

The

rear

suspension can be manually

adjusted for variations in load

distribution.

Adjustment

is made

at

the

adjustment

nut

on

the height control

valve arm.

MAINTE

NANCE

1.

Drain air reservoir

under

front

of

vehicle

to

remove

moisture.

2.

The

air

compressor

must

periodicaJJy

have the

air filter washed

with

soap and

66

water

solution

or

replaced.

Filter

should be

serviced

at

in

terva

Is specified in

Maintenance Schedule folder.

NOTE: Occasionally check air bellows

to

see if

they

are caked

with

accumulated

mud deposits.

If

deposits

are

present

remove

them

from

air

bellows.

UNDERBODY MAINTENANCE

The

effects

of

salt and

other

corrosive
materials used for ice and snow removal
and

dust

control

can result in accelerated

rusting and

deterioration

of

underbody

components

such as brake

and

fuel lines,

frame ,

exhaust

system, brackets, parking

brake

cables. These corrosive effects,

however, can be reduced by

periodic

flushing

of

the

underbody

with

plain

water

.
In geographic areas having a heavy
concentration

of

such corrosive materials, it

is

recommended

that

the

complete

underbody

be inspected

and

flushed

at

least

once

each year, preferably

after

a

winter's

exposure. Particular

attention

should be given

to

cleaning

out

underbody

members where dirt and

other

foreign

materials may have co

ll

ected.

If

desired,

your

Motor

Home

dealer can

perform this service for you.

In

addition,

he can provide

recommendations

on

undercoating materials

which

will help

protect

your

vehicle

from

corrosion. (See

"Undercoating"

in APPEARANCE

CARE

section.)

SECTION

6

SPECIFICATIONS,

OWNER

ASSISTANCE,

INDEX,

GAS

STATION

INFORMATION

VEHICLE

IDENTIFICATION NUMBER

In order

that

your

vehicle may be

specifically

id

entified as

to

manufacturer,

engine type, year designator, etc., refer

to

chart below.

(TYPICAL

IDENTIFICATION

NUMBER

TZE336Vl

00053)

MODEL

DESIGNATION

Model

Code

33

MFD

.

BY

GMC

36

Length

23'

26'

YEAR

DESIGNATOR

ENGINE

TYPE

E-

V8 Gasoline

SEQUENTIAL

NUMBER

100053

ASSY

.

PLANT

CODE

V-

Pontiac

Vehicle

Identification N

umb

er

67

VEHICLE

DIMENSIONS

Track

..

. . . . . . . . . . . . . . . . . . . .

Front

- 75.28 in.

Rear- 82. 12 in .

Wheelbase

. . .

23'

Model . . 140

ln.

26'

Model . 160 in.

Length (Including optional spare tire)

23'

Model 23 ft.-9in.

26'

Model

26

ft.-9in .

. .

96

in.

8 ft.-1 in.

Width
Height

Interior Ceiling Height

..

76

in.

CAPACITIES

Fuel System
Cooling System .

Engine

Oil

Turbo

Hydramatic

Final Drive (Differential)
Power Steering

Pump

.

Power Steering System

. . . . . . . Two,

25

Gal. Tanks

. . . . . . . . . . . . .

21

Qts.

5 Qts. (Including Filter 6

Qts

.)

. . Drain

& Refill 4 Qts.

After Complete Overhaul 12 Qts.

. . 4 Pts.

I /2 Qt.

. . . . l l /2 Qt.

ENGINE*

Displacement
Carburetor
Compression Ratio

Bore . . . .

..

.

Stroke

.....

.
Firing Order
High Energy Ignition

System

Spark Plugs

. . .

Spark Plug Gap . . . . .

Dwell

..........

.

*See Tune-up label on engine for additional

BATTERIES

Main (Automotive) Battery

455

cu

. in.

. 4 Barrel

. . 8.5 :

I

4.125 in.

4.250

in.

l-8-4-3-6-5-7-2

specifications.

AC

R46SX

0.080

in.

Electronic

Maintenance-Free

Type

. . . . . . . Freedom Catalog No. R89-5

No. R89-5 Rated

4000

Watts @ 0°F. (-J8oC.)

Flame Arrestor Vent Cap

Typ

e . . . . E

5000

Catalog No.

R9l

No.

R9l

Rated

3350

Watts @

QoF.

(-l8°C.)

Auxiliary Battery

Maintenance-Free

Type

. . . . . . . . . Freedom Catalog No. R89-5

No. R89-5 Rated

4000

Watts @ oo F. (- 18° C.)

Flame Arrestor

Vent

Cap

Typ

e

...

E

5000

Catalog No.

R91

No. R91 Rated

3350

Watts @

oo

F. (- l8°C.)

Motor Generator (Optional) Battery

Maintenance-Free

Type

. . . . . . . Freedom Catalog No. R 85-5

No. R85

-5

Rated

3200

Watts

at

QoF.

(-l80C.)

68

MISCELLANEOUS

Radiator cap (pressure opening)

Thermostat . . . . . . . . . . .

. . . . . 9

PSI

AC

Type RC32

. . . . .

195°F.

TIRE

INFORMATION

SEE "Wheels and Tires" in the SERVICE AND MAINTENANCE

section

of

this manual and

the

tire placard on the glove box door.

FILTER

RECOMMENDATIONS

Engine

Air

Cleaner

Engine

Oil

Transmission Oil

Engine Fuel . .

PCV Valve

..

Carbon Canister

AC Type A212CW

.

AC

Type PF30

.

AC

Type PF160

AC

Type GF441

AC

Type CV679C

GM

Part 7026014

FRONT

END

ALIGNMENT

Caster (Degrees)* .
Camber (Degrees)**

Toe-In (Inches) . . . . . . . . . . . .

*L.H. and R.H. must be within

1/2°.

+2°

±1/2°

R.H. +1/2° ± 1/4°

L.H. +

3/4

• ± 1/4°

...

- 1/8 ±1/8

**L.H. camber must be more positive (+) than R.H. camber.

69

VEHICLE FUSES

AND

CIRCUIT

BREAKERS

The

following fuses

are

located in

the

fuse block behind

the

glove

box

in

the

dash. Do

not

use fuses

or

higher amperage rating

than

those

specified below

-or

property

damage may result.

Usage

Name

on

Fuse

Type

Fuse

Block

Auxiliary

Battery

Switch

,

Radio

,

Aux.

Bat-Radio

AGC-10

Tape

Player

Heater

Controls,

Htr.-A/C

AGC-25

Air

Conditioner

Side Marker Lights ,
I.D.

& Clearance Lights,

Tail Lights ,

Tail-Dome

SFE-20A

Dome

Lights,

License Light
Stop

Lights,

Hazard Warning Lights,

Dir. Sig.-Haz.

&

Stop

SFE-20A

Turn

Signal Lights

Windshield Washers

Washer

AGC-10

Cigar-Cigarette Lighter

Ltr.

SFE-20A

Cruise

Control,

Cruise-B/U Lps. SFE-20A

Back-up Lights
Transmission

Control

,

Parking Brake Light , Gauges-Trans.

SFE-IOA

Gauges
Instrument

Lamps

Inst. Lps.

SFE-4A

Warning

Tell-Tales

AGC-10

Tell-Tale Lights

The

following circuits

employ

circuit

breakers

or

have fuses located as

indicated:

Headlight Circuit Breaker . .

......

..

...

Built

Into

Light Switch

Heater

Blower Fusible Link

Warning

& Signal Flasher GM No.

673499

Vehicle

Trouble

Light AGC-10

Built

Into

Line

At

Right Access

Door

Near

Heater

Blower Relay

In Clip Behind

Instrument

Panel

In Line, Behind

. Access

Door,

Near

Light

Air Suspension Compressor

30A

Circuit Breaker . . . .

In

Fuse Block

70

ONAN

MOTOR

GENERATOR

{

6000

WATT -50

AMP)

Bore
Stroke

.

....

......

3

9/16

in.

Oil

Capacity

Spark Plug

Type
Spark Plug Gap .
Breaker

Point

Gap

Ignition Timing

(Running

or

Static)

Tappet

Adjustment

(Engine

Cold)

Intake

.

Exhaust

....

.

....

.

. . . . . . . . . . . . . 3 in.

. . . . . . . . . . . . . 4

Qt.

(With

Filter

Change) 4

1/2

Qt.

.

ACR46S

.

.020

in.

.

.020

in.

25° BTDC

.

.003

in.

.

..

012

in.

LIGHT

BULB SPECIFICATIONS

{INSTRUMENT

PANEL)

Usage

Brake

System Tell Tale

Generator

Tell Tale
Park Brake Tell Tale
Cruise

Control

Tell Tale

Door

Ajar Tell Tale
Low Fuel Tell Tale
Low Air Tell Tale

Power

Level Tell Tale

High Beam

Indicator

Turn

Signal

Indicator

Instrument

Cluster Lights
Speedo Cluster Lights
Dome

Lights

Radio Dial

(AM/FM/Stereo/Tape)
Radio Dial (Exc. AM/FM/Stereo/Tape)
Heater

Control

Quantity

I

1

1

I
I

1
1

2

1

2

2

2

2

1
1

I

LIGHT

BULB SPECIFICATIONS

{EXTERIOR)

Usage

Clearance and I.D.

License

Side

Markers-Front

Side Markers-

Rear
Back-up Lights
Parking

and

Tum

Signals

Stop

and

Tail

Headlights

71

Quantity

10

I

2

2

2
2

2
2

Bulb No.

161

1

61

74
74
74

74

74

74

161
168

194

194

211

566

1893
1895

Bulb No.

67
67

1

94

194

1156

1157

115

7

6014

OWNER

ASSISTANCE

The satisfaction

and

goodwill

of

the owners

of

GMC Truck &

Coach products are

of

primary concern

to

your

dealer and

the

GMC Truck & Coach Division. Normally,

any

problems

that

arise in

connection with the sales transaction

or

the operation

of

your

vehicle will be handled by

your

dealer's Sales

or

Service

Departments.

It

is recognized, however,

that

despite

the

best

intentions

of

everyone concerned, misunderstandings will sometimes

occur

.

If

you have a problem

that

has

not

been handled

to

your

satisfaction through normal channels, we suggest

that

you take the

following steps:

STEP ONE-Discuss

your

problem

with

a member

of

dealership

management. Frequently, complaints are the result

of

a breakdown

in communications and can quickly be resolved by a member

of

the

dealership management.

If

the

problem already has been reviewed

with the Sales Manager

or

Service Manager,

contact

the

Dealer

himself

or

the

General Manager.

STEP TWO-

Contact

the

GMC Truck & Coach Division Zone Office

closest

to

you listed

on

page

74

(or in Canada

contact

the

general

Motors Zone Office). When

it

appears

that

your

problem cannot be

readily resolved

by

the

service

outlet

without additional assistance,

the

matter

should be called

to

the

attention

of

the Zone's

Customer Services Department

and

the

following information

provided:

•

Your

name, address, telephone

number

• Vehicle Identification Number*

• Dealer's name and location

• Vehicle's delivery date and mileage

• Nature

of

problem

STEP THREE- Contact

the

Customer Services Manager,

GMC

Truck

& Coach Division, 660

South

Blvd. East, Pontiac, Michigan

48053

(phone [phone]). In Canada,

contact

the Owner Relations

Manager, General Motors

of

Canada Limited, Oshawa, Ontario (phone

416-644-6624 ).

If

after an additional review

of

all facts involved he

feels

that

some further action can be taken, he will so instruct

the

Zone.

In

any

case,

your

letter will be acknowledged providing GMC

Truck & Coach Division's position in

the

matter.

When contacting

the

Zone

or

Home

that

ultimately

your

problem likely

dealership utilizing

the

dealer's facilities,

is suggested, therefore,

that

you

follow

when pursuing a problem.

Office, please bear

in

mind

will

be

resolved

in

the

equipment

and personnel.

It

the

above stepg in sequence

Your

purchase

of

a GMC Truck & Coach

product

is greatly

appreciated

by

both

your

dealer and GMC Truck & Coach Division.

It

is

our

sincere desire

to

assist

you

in any way possible

to

assure

your

complete satisfaction with

your

vehicle.

*Available from vehicle registration, title

or

vehicle identification

plate.

72

u.s.

ZONE

TERRITORIES

i 1

-----

1

I

I

'

I

I

'

: f

1 a

' ! Q

li

1---

------

::

:

-----r-

---r_}

.

'•

li

73

U.S.

ZONE

OFFICES

When

calling

lor

assistance,

please

ask

lor

Customer

Services

Manager

ATLANTA

DENVER

OAKLAND

53

7 3

Peachtree

Industrial

Blvd.

4

715

Colorado Blvd.

10626

E.

14th

Street

Chamblee,

Geor

gia

30341

Denver, Colo.

80216

Oakland, Calif.

94603

455-5564

388-1611

568-6929

Area

Code

404

Area

Code

303

Area

Code

415

DETROIT

BOSTON

600

S. Saginaw

PITTSBURGH

20

Cross St.

P.O.

Box

456

Russelton Road

Woburn,

Mass. 01801

Pontiac, Mich.

48053

Ch

eswick,

Pa.

15024

935-68

58

857-4686

274-8000

Area Code

61

7

Area

Code

313

Area

Code

412

KANSAS

CITY

CHARLOTTE

1509

N.E.

Parvin

Rd.

PORTLAND

Kansas

City, Mo.

64116

1914

W. M

orehead

281-6063

5355

S.W.

Western

Avenue

P.O.

Box

8149

Area Code

913

Be

averton, Ore.

97005

Freedom

Station

646-8333

Charlotte,

N. C.

28208

LOS

ANGELES

Area

Code

503

332-4181-82-83

8155

Van

Nuys

Blvd.

Area

Code

704

Suite

1030

Panorama

Towers

Panorama

City

, Calif.

91402

ST.

LOUIS

873-7554

Suite

320

CHICAGO

Area

Code

213

Crestwood

Executive

Center

2021

Spring

Rd.

MEMPHIS

St. Louis, Mo. 6312 6

Oakbrook, Ill.

60521

3495

Lamar

Ave.

849-0990

654-6465

Area

Code

314

Area

Code

312

Box

18714

Holiday

City

Sta.

Memphis,

Tenn.

38118

WASHINGTON

CINCINNATI

365-9210

Suite

41

0- Profess.

Bldg

.

40

10

Executive

Park

Drive

Area

Code

90

1

1109

Sprin

g St.

Suite

320

MINNEAPOLIS

Silver Spring,

Md.

20910

Cincinnati, Ohio

45241

3001

Broadway

N.E.

659-3166

Minneapolis,

Minn.

55413

Area

Code

202

DALLAS

331-4282

6007

Peeler

Street

Area

Code

612

HAWAII

(HONOLULU)

P.O.

Box

35187

NEW

YORK

1600

Kapiolani

Blvd.

Airlawn

Station

780

Dowd

Avenue

Suite

714

Dallas,

Texas

75235

Elizabeth, N.J.

07207

946-3988

358-5316

354-8200

Honolulu, Hawaii

96814

Area

Code

214

Area

Code

201

Area

Code

808

Note: The State

ol

Alaska

is serviced

by

the

Portland

Zone

.

MEXICO ZONE

OFFICE

General

Motors

de

Mexico S.A.

de

C.V. Av.

Ejercito

Nacional No.

843

Mexico 5,

D.F.

Phone

No.

545-3921

74

-.)

VI

ZONES
VANCOUVER

CALGARY
REGINA
WINNIPEG
LONDON

ADDRESS
900

Terminal

Avenue

Vancouver,

B.C.

VGA

2N6

Box

2510

Calgary,

Alberta

T2P

2M7

581

Park

Street

Regina,

Sask.

S4P

3E9

1345

Redwood

Avenue

Winnipeg,

Man.

R2X

OY9

1991

Oxford

St.

E.

London,

Ontario

N6A

4P6

..

WINNIPEG

SASKATCHEWAN

AREA

CODE

PHONE

NO.

604

684-9444

ZONES

403

243-4621

TORONTO

306

643-2224

OTIAWA

204

633-1080

MONTREAL

519

455-2400

MONCTON

,:)

r-···

.

!,

~,_,.·

·.

..

.....

,

..

"'•~"'

LONDON

ONTARIO

ADDRESS
1200

Eglinton

Ave.

East

Don

Mills,

Ont.

M3C

lJ1

875

Belfast

Road

Ottawa,

Ont.

K1G

OZ4

5000

Trans-Canada

Hwy.

Pointe

Claire,

Quebec

H9R

4R2

653

St.

George

Street

Moncton,

N.B.

ElC

8M2

(;)

~

0

,

n

)>

z

)>

c

)>

r-

-

~

-

-t

m

c

I

N

0

z

m

0

,

,

-

AREA

CODE

PHONE

NO.

I

n

m

416

446-5053

Vt

613

237-5051

514

697-9160

506

854-1500

24-HOUR PHONE ASSISTANCE

•

Need

answers

to

service

or

maintenance

questions?

•

Want

to

discuss

vehicle

specifications?

•

Want

to

know

where

the

GMC

Motor

Home

dealer

is

located?

NORMAL

BUSINESS

HOURS

GMC

offers

you

direct-to-factory

communication.

You

can

dial

toll

free

Monday

through

Friday

between

8:15A.M.

and

5:00P.M.

(EST)

and

talk

with

qualified

personnel

by

calling

the

number

below.

AFTER-HOUR INFORMATION

SERVICE

If

you

have

attempted

to

contact a GMC

MotorHome

dealer

after

normal

business

hours,

without

success,

you

may

call

the

toll-free

number

below.

The

operator

who

will

answer

has

a list of

private

numbers

through

which

many

dealers

can

be

reached

after

hours

and

will give

you

the

number

and

location

of

the

nearest

one.

It

should

be

understood,

however,

that

any

charges

for

after-hours

service assistance

must

be

borne

by

the

owner.

In

those

instances

where

the

repair

qualifies

under

our

published

warranty,

the

dealership

charge

for

additional

services,

such

as

for,

after

normal

business

hour

repairs

will

be

the

owner's

expense.

800-521-2806

In

Michigan

call:

800-572-7959

MAINTENANCE

MANUAL

AND

PARTS

BOOK

Maintenance

Manual

and/or

Parts

Book

can

be

purchased

through

any

GMC

MotorHome

dealer.

76

IMPORTANT

FACTS

YOU

SHOULD

KNOW

ABOUT GASOLINE MILEAGE AND

HOW

TO IMPROVE

IT

How

you

drive,

where

you

drive,

and

when

you

drive

all

have

an

effect

on

how

many

miles

you

can

get

from a gallon

of

gasoline.

The

care-

ful

attention

you

give

your

vehicle

as

far

as

maintenance

and

repairs

are

concerned

will also

contribute

importantly

to

fuel economy.

FUEL

SELECTION

Use

a gasoline

of

at

least

87

average

octane

number

(Research

octane

plus

Motor

octane

divided

by

two).

The

gasoline

should

have

a

Research

octane

number

of

least

91,

and a Motor

octane

number

of

at

least

83.

Additional

details

on

Fuel

Requirements

are

given

in

the

SERVICE

AND

MAINTENANCE

section.

"JACKRABBIT"

STARTS

Gasoline

can

be

conserved

(and

engine

and

tire

life

prolonged)

by

avoiding

unnecessarily

rapid

acceleration

away

from

lights

and

stop

signs.

STOP-AND

START

DRIVING

Frequent

stops

and

starts

during a trip

really

cut

down

on

your

miles

per

gallon.

Plan

even

your

short

trips

to

take

advantage

of

through

streets

to

avoid

traffic lights.

Pace

your

driving

like

the

professional

drivers

to

avoid

unneces-

sary

stops.

EXCESSIVE

IDLING

An

idling

engine

uses

gasoline

, too.

If

you're

faced

with

more

than a few

minutes

wait

and

you're

not

in

traffic,

it

may

be

better

to

"turn

off"

and

start

again

later.

SUDDEN

STOPS

Sudden

stops

themselves

don't

waste

gasoline,

but

energy

is

wasted

as

heat

in

braking.

Energy

in

the

form

of

gasoline is

also

needed

to

acceler-

ate

back

to

driving

speed.

LUBRICANTS

A

properly

lubricated

vehicle

means

less

friction

between

moving

parts. Consult

this

manual

and

the

maintenance

schedule

for

the

proper

lubricants

to

use

and

the

lubrication

intervals.

AIR

CLEANER

Your

vehicle receives

its

power

from

a mix-

ture

of

gasoline

and

air.

The

air

is

taken

int

o

the

system

through

the

air

cleaner

so

it's

impor-

tant

to

replace

the

air

cleaner

at

required

inter-

vals. A

dirty

air

cleaner

reduces

engine

efficiency.

PROPERLY

TUNED

ENGINE

Overall

tuning

(a

check

on

timing,

spark

plugs, emission

control

devices,

etc

.)

can

improve

your

vehicle's gas

mileage. You

just

can

't

expect

an

"out-of-tune"

engine

to

give

you

good gas

mileage

and

cleaner

air.

EXCESS

WEIGHT

Fuel

economy

is

related

to

the

work

the

en-

gine

must

do.

The

heavier

the

load, the

more

power

it

takes.

Keep

excess

weight

to

a mini-

mum

by

removing

any

personal

effects

or

lug-

gage

from

the

vehicle

when

they

are

not

needed.

TIRE

INFLATION

Underinftation

not

only

causes

needless

wear

of

the

tires, but

can

also

waste

gasoline. It's a

good

idea

to

check

tire

pressures regularly.

77

WHEEL

ALIGNMENT

"Toe

in"

or

"toe

out"

has

the

effect of

drag

-

ging

your

front

tires

sideways

and

causes

prema-

ture

tire

wear.

It

takes

power

to

carry

this

extra

load

and

that

takes

gas

from

your

tanks.

INDEX

SUBJECT

PAGE NO.

A

Absorbers, Shock . . . . . . . . . . . . . . . . . . . . 65

Accessory

Position, Ignition Switch . . . . . . 12

After-Hour

Information

Service . . . . . . . . .

76

Air Circulation . . . . . . . . . . . . . . . . . .

24-

26

Air Cleaner . . . . . . . . . . . . . . . . . . . . . .

57,

69

Air

Compressor

. . . . . . . . . . . . . . . . . . . . . 65

Air

Conditioning

Automotive

. . . . . . . . . . . . . . . . . . . . . . 25

Air Suspension . . . . . . . . . . . . . . . . . . . . . . 65

Alignment, Wheel . . . . . . . . . . . . . . . . . . . .

69

Antenna

. . . . . . . . . . . . . . . . . . . . . . . . . . .

27

Anti-theft

Steering

Column

Lock

. . . . . . . . 12

Appearance

Care . . . . . . . . . . . . . . . . . . . .

39

Automatic

Transmission

Fluid

Check . . . . . . . . . . . . . . . . . . . . . .

50

Maintenance . . . . . . . . . . . . . . . . . . .

50,

52

Operation

. . . . . . . . . . . . . . . . . . . . . . . .

14

Starter

Safety Switch . . . . . . . . . . . . . . . 13

Auxiliary Battery . . . . . . . . . . . . . .

23,

58,

68

Auxiliary Fuel

Tank

. . . . . . . . . . . . . . . . . .

23

Axle, Final Drive . . . . . . . . . . . . . . . . . . . .

53

8

Batteries

Emergency

Starting

. . . . . . . . . . . . . . . .

33

Fluid Level . . . . . . . . . . . . . . . . . . . . . . . 58

Gas

Caution

. . . . . . . . . . . . . . . . . . . . . .

59

Location . . . . . . . . . . . . . . . . . . . . . . . . . 58

Battery

Boost

Switch . . . . . . . . . . . . . . . . .

23

Bearings, Rear Wheel . . . . . . . . . . . . . . . . .

64

Before Driving . . . . . . . . . . . . . . . . . . . . . . 5

Belts, Lap . . . . . . . . . . . . . . . . . . . . . . . . 7 ,

39

Blower, Ventilating . . . . . . . . . . . . . . . 24, 25

Body Identification

Number

. . . . . . . . . . . 67

Brakes

Linings . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Master

Cylind

er

Level . . . . . . . . . . . . . . . 53

Parking Brake . . . . . . . . . . . . . . . . . . . . . 18

Power..........

.

......

...

.......

17

Self-Adjusting . . . . . . . . . . . . . . . . . . . . . 18

Trailer . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Warning Light . . . . . . . . . . . . . . . . . . . . .

21

Bright Metal Cleaning . . . . . . . . . . . . . . . . .

43

Bulbs

and

Fuses . . . . . . . . . . . . . . . . . .

70,

71

c

Cap, Filler

Engine Oil . . . . . . . . . . . . . . . . . . . . . . .

45

Gasoline . . . . . . . . . . . . . . . . . . . . . . . . .

57

Power Steering Reservoir . . . . . . . . . . . .

52

Radiator

. . . . . . . . . . . . . . . . . . . . . . . . .

54

78

SUBJECT

PAGE NO.

Capacities . . . . . . . . . . . . . . . . . . . . . . . . . . 68

Carbon

Monoxide

Cauti

on

. . . . . . . . . . I 0,

11

Carburetor,

Engine . . . . . . . . . . . . . . . . . . . 57

Changing Wheels &

Tires

. . . . . . . 35,

61-64

Charging System

Indi

cator

Light . . . . . . . .

21

Chassis

Lubrication

. . . . . . . . . . . . . . . 5 I ,

53

Check List . . . . . . . . . . . . . . . . . . . . . . . . . 5

Child Restraints . . . . . . . . . . . . . . . . . . . . . 8

Chrome

Protection

. . . . . . . . . . . . . . . . . . .

43

Cigar Lighter . . . . . . . . . . . . . . . . . . . . . . .

24

Circuit Breaker, Headlights . . . . . . . . . . 19,

70

Circuit Breaker . . . . . . . . . . . . . . . . . . . 19,

70

Cleaning

Exterio

r Finish

and

Trim

...........

.

Fabric

and

Interior

Trim

...........

.

Spot

Removal

.......

.

............

.

Cold Weather Starting

..............

. .

Compartment

Engine

......

..............

.

...

. .

Front

Access

....................

.

Glove .

.......................

. . .

Comp

laint

Procedure

................

.

Conditioner,

Automotive,

Air

.........

.

Cooling System

Care

....

...

. .

.........

. . . .....

. .

Coolant

Recommendation

..........

.

Overheating

Cautio

n . . ...........

. . .

Cruise

Control ..

.......

.

...........

.

Customer

Serivce

D

43

41

42

13

47

46

5

72

25

54
54
35

14

72

Defrosters . . . . . . . . . . . . . . . . . . . . . . .

24,

25

Differential, Final Drive . . . . . . . . . . . . . . . 53

Dimensions, Vehicle . . . . . . . . . . . . . . . . . . 68

Dimmer

Switch, H

eadlamp

. . . . . . . . . . . . . 19

Directional

Signal . . . . . . . . . . . . . . . . . . . .

15

Distributor

. . . . . . . . . . . . . . . . . . . . . . . . .

59
Dome

Lights . . . . . . . . . . . . . . . . . . . . . . . 22

Driver

Check List . . . . . . . . . . . . . . . . . . . . 5

Driver's Seat . . . . . . . . . . . . . . . . . . . . . . . . 6

Dusty

Condition,

Operation

Under

. . .

31,

57

E

Electrical Systems

Batteries . . . . . . . . . . . . . . . . . . .

23,

58,

68

Battery

Boost

Switch . . . . . . . . . . . . . . .

23

Bulbs, Light . . . . . . . . . . . . . . . . . . . . . .

71

Charging System Indi

cato

r Light . . . . . .

21

Diode Assembly . . . . . . . . . . . . . . . . . . .

23

Emergency

Exit

. . . . . . . . . . . . . . . . . .

38,

39

SUBJECT

PAGE

NO.

Emergency, In Case

Of

. . . . . . . . . . . . . . . . 33

Brake

System Warning Light . . . . . . . . .

21

Charging System Warning Light . . . . . . .

21

Emergency Starting . . . . . . . . . . . . . . . . 33

Hazard Warning Flasher . . . . . . . . . . . . . 33

Jacking Instructions . . . . . . . . . . . . . . . . 35

Jump

Starting.

. . . . . . . . . . . . . . . . . . . . 33

Overheated Engine . . . . . . . . . . . . . . . . .

35

Power Level System . . . . . . . . . . . . . . . . 29

Pushing

to

Start

. . . . . . . . . . . . . . . . . . . 33

Towing.......................

.

..

37

Engine Access. . . . . . . . . . . . . . . . . . . . . . . 47

Engine Coolant Reservoir . . . . . . . . . . . . . . 54

Engine Compartment . . . . . . . . . . . . . . . . . 47

Engine

Oil

Capacity . . . . . . . . . . . . . . . . . . . . . . . . . 68

Dip Stick . . . . . . . . . . . . . . . . . . . . . . . . 50

Filter . . . . . . . . . . . . . . . . . . . . . . . . 49, 69

Pressure Gauge . . . . . . . . . . . . . . . . . . . .

20

Recommendation . . . . . . . . . . . . . . . . . . 49

Entrance Door . . . . . . . . . . . . . . . . . . . . . . 7

Ethy

lene Glycol Coolant . . . . . . . . . . . . . .

54

Exhaust Gas Caution . . . . . . . . . . . . . . 10,

11

Parked with Engine Running . . . . . . . . . .

11

Exit, Emergency . . . . . . . .

..

. . . . . . . . . 38, 39

Exterior Finish Care . . . . . . . . . . . . . . . . . . 43

F

Fabric Care . . . . . . . . . . . . . . . . . . . . . . . . .

41

Filters . . . . . . . . . . . . . . . . . . . . . . . . . . 49,

69

Final Drive Differential . . . . . . . . . . . . . . . 53

Finish Care, Exterior . . . . . . . . . . . . . . . . . 43

Flammable Cleaning

Solvents . . . . . . . . . . .

41

Flashers

Hazard Warning . . . . . . . . . . . . . . . .

33,

70

Turn Signal . . . . . . . . . . . . . . . . . . . .

15, 70

Flooded Engine . . . . . . . . . . . . . . . . . . . . .

13

Floor Controls . . . . . . . . . . . . . . . . . . . . . . 17

Fluid Capacities . . . . . . . . . . . . . . . . . . . . .

68

Fluid Levels

Batteries . . . . . . . . . . . . . . . . . . . . . . . . . 58

Brake Master Cylinder . . . . . . . . . . . . . . 53

Engine Oil . . . . . . . . . . . . . . . . . . . . . . . 49

Final Drive . . . . . . . . . . . . . . . . . . . . . . . 53

Power Steering . . . . . . . . . . . . . . . . . . . . 53

Radiator . . . . . . . . . . . . . . . . . . . . . . . . .

54

Transmission . . . . . . . . . . . . . . . . . . . . . 50

Foreign Countries, Operation in . . . . . . . . . 9

Four-Way Hazard Warning Flasher . . . . . . . 33

Front

Access Doors . . . . . . . . . . . . . . . . . . 46

79

SUBJECT

PAGE

NO.

Front

Suspension . . . . . . . . . . . . . . . . . . . .

65

Fuel

Filler Cap Location . . . . . . . . . . . . . . . . 57

Gauge . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Recommendation . . . . . . . . . . . . . . . . . . 56

Tank

Selector Switch . . . . . . . . . . . . . . .

23

Fumes, Engine Exhaust . . . . . . . . . . . . l 0, 1 1

Fuses

Vehicle Chart . . . . . . . . . . . . . . . . . . . . .

70

Vehicle Location . . . . . . . . . . . . . . . . . . 60

G

Gas Station Informati

on

. (Inside Back Cover)

Gasoline

(See Fuel) . . . . . . . . . . . . . . . . . .

56

Generator Indicator Light . . . . . . . . . . . . .

21

General Data & Specifications . . . . . . . . . .

67

Glass

and

Mirrors . . . . . . . . . . . . 5, 30, 40 , 43

Glove Box . . . . . . . . . . . . . . . . . . . . . . . . . 5

Gross Vehicle Weight (GVW) . . . . . . . . . . . 2

H

Hazard Warning Flasher . . . . . . . . . . . . 33, 70

Headlight

Adjustment . . . . . . . . . . . . . . . . . . . . . .

60

Flicker .....

....

. . ....

........

. . :

19

High Beam Dimmer Switch . . . . . . . . . . 19

High Beam Indi

cator

. . . . . . . . . . . . . . . 19

Replacement . . . . . . . . . . . . . . . . . . . . .

60

Switch

. . . . . . . . . . . . . . . . . . . . . . . . . . 22

Heater, Operation . . . . . . . . . . . . . . . . . . . .

24

Hitches, Trailer . . . . . . . . . . . . . . . . . . . . . . 9

Hoisting Vehicle . . . . . . . . . . . . . . . . . . . . . 48

Horn.....

. . . . . . . . . . . . . . . . . . . . . . . . .

15

Identification Lights . . . . . . . . . . . . . . . 22,

71

Identification Number, Vehicle . . . . . . . . .

67

ldentificaiton Plate , Vehicle . . . . . . . . . . . . 3

Ignition, Keys and Lock . . . . . . . . . . . . . . 5, 7

In Case

of

Emergency . . . . . . . . . . . . . . . . . 33

Indicator Lights . . . . . . . . . . . . . . . . . . . . . 29

Infant Restraining Methods . . . . . . . . . . . . 8

Inflation

Pressure, Tire . . . . . . . . . . . . . . . .

61

Instrument Panel . . . . . . . . . . . . . . . . . . . .

19

Interior Appearance Care . . . . . . . . . . . . . . 39

J

Jack Usage Instructions . . . . . . . . . . . . . . .

35

Jump

Starting.

. . . . . . . . . . . . . . . . . . . . . . 33

SUBJECT

PAGE

NO.

K

Keys..............................

5

Knocking

Engine . . . . . . . . . . . . . . . . . . . .

56

L

Lane Change

and

Turn

Signal . . . . . . . . . . .

15

Lap

Belts . . . . . . . . . . . . . . . . . . . . . . . . .

7,

8

Latch,

Door

. . . . . . . . . . . . . . . . . . . . . . . . 7

Leveling, Vehicle . . . . . . . . . . . . . . . . . . . .

28

Lighter, Cigar . . . . . . . . . . . . . . . . . . . . . . .

24

Lights

Brake Warning . . . . . . . . . . . . . . . . . . . .

21

Bright Beam

Indicator

. . . . . . . . . . . . . .

19

Bulb

Chart

. . . . . . . . . . . . . . . . . . . . . . .

71

Charging

System.

. . . . . . . . . . . . . . . . . .

21

Dome...........................

22

Hazard

Flasher

. . . . . . . . . . . . . . . . . . . . 33

Headlight

Switch

. . . . . . . . . . . . . . . . . .

22

Marker & Clearance . . . . . . . . . . . . . . . . 22

Parking Brake . . . . . . . . . . . . . . . . . . . . .

22

Tail Lights . . . . . . . . . . . . . . . . . . . . . . .

22

Tell Tale Warning . . . . . . . . . . . . . . . . . .

21

Turn

Signal

Indicator

. . . . . . . . . . . . . . .

15

Linings, Brake . . . . . . . . . . . . . . . . . . . . . .

18

Loading, Vehicle . . . . . . . . . . . . . . . . . . . . 2

Locks . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5

Low

Temperature

Operation

. . . . . . . . . . .

13

Lubrication

Details . . . . . . . . . . . . . . . . . . .

49

M

Maintenance

Appearance

Care . . . . . . . . . . . . . . . . . .

39

Manual . . . . . . . . . . . . . . . . . . . . . . . . . . 76

Master

Cylinder,

Brake

. . . . . . . . . . . . . . . .

53

Marker Lights . . . . . . . . . . . . . . . . . . . . . . .

22

Metal Cleaners . . . . . . . . . . . . . . . . . . . . . . 43

Methods

of

Restraining

Children

. . . . . . . . 8

Mirrors,

Rear

View . . . . . . . . . . . . . . . . . . . 5

Mobile

Radio

Transmitter

. . . . . . . . . . . . .

28

0

Odometer

. . . . . . . . . . . . . . . . . . . . . . . . . .

19

Oil

Additives . . . . . . . . . . . . . . . . . . . . . . . .

49

Checking

Engine

Oil Level . . . . . . . . . . .

49

Pressure Gauge. . . . . . . . . . . . . . . . . . . . .

20

Recommendations

. . . . . . . . . . . . . . . . .

49

Transmission

. . . . . . . . . . . . . . . . . . . . .

50

Viscosity . . . . . . . . . . . . . . . . . . . . . . . .

49

Operation

in

Foreign

Countries

. . . . . . . . . 9

80

SUBJECT

PAGE

NO.

Overheated

Engine

Temperature

Gauge

.....

.

...

0

••••••

What

To

Do

.....

.

..

0

••••••••••••

•

Owner

Assistance

p

19
19
72

Paint,

Care

and

Touch

Up

. . . . . . . . . . . . .

44

Parking . . . . . . . . . . . . . . . . . . . . . . . . . . . .

12

Brake

................

.

......

. . 0 •

18

Lights..................

. . . . . . . . .

22

Plugs,

Spark

...........

0 •

••••

0 • • •

59,

68

Polishing

and

Waxing

...

0 • • • • • • • • • • • • • 43

Power

Brakes

.....

.

...........

. . 0 • • • • • •

17

Level

System

. . . . . . . . . . . . . . . . . . . . .

28

Steering

........

.

......

0 • 0

••

0 • • • • 15

Pressure,

Tire

Inflation

...........

0

0...

61

R

Radiator

and

Coolant

0 0 0 ••••

••

0 • • • • • • •

54

Radio

AM

......

...

o 0

••••••

o

•• o ••••••••

26

AM/FM

......

..

. 0

•••••••••••••••

26

Antenna

..............

0

••••

0

••

0..

27

Mobile

Transmitter

..

0 • • • • • • • • • • • • • •

28

Stereo........

. . . . . . . . . . . . . . . . . . .

27

Tape

System

......

0

•••••••••••••

0 •

27

Raising Vehicle With

Jack

...

....

0 • • • • •

35

Rear

Suspension

. . . . . . . . . . . . . . . . . . . . . 65

Rear

Wheel Bearings

...........

0

•••

0 • •

64

Restraints, Child . . . . . . . . . . . . . . . . . . . . . 8

Rotation,

Tire

...........

0

•••

•

••

0 • • • 63

s

Safety

Belts, Lap

..........

0

•••

0

•••••

0 • • 7, 8

Schedule,

Maintenance . . 0

••

0 0 0

••••

0 0 • • 45

Screen, Window

..............

. .

..

0 • •

40

Seat

Adjustments

..........

0 • • • • • • • • • • • 6

Belts

.....

0

•••••••

0

•• 0 ••

0 • 0 • • • • • • 7

Self

Adjusting

Brakes . . . . . . . . . . . . . . . . .

18

Service

and

Maintenance

. . . . . . . . . . . . . . 45

Service Assistance,

After-Hour

. . . . . . . . . . 76

Shock

Absorbers . . . . . . . . . . . . . . . . . . . . 65

Signals,

Turn

. . . . . . . . . . . . . . . . . . . . . . .

15

Solvents,

Recommended

Cleaning . . . . . . .

41

Spark

Knock

. . . . . . . . . . . . . . . . . . . . . . .

56

Spark

Plugs.

. . . . . . . . . . . . . . . . . . . . .

59,

68

Speakers,

Radio

. . . . . . . . . . . . . . . . . .

26,

27

SUBJECT

PAGE NO.

Specifications

Air Cleaner . . . . . . . . . . . . . . . . . . . . . . . 69

Body . . . . . . . . . . . . . . . . . . . . . . . . . . . 67

Capacities . . . . . . . . . . . . . . . . . . . . . . . .

68

Dimensions . . . . . . . . . . . . . . . . . . . . . . .

68

Filters.

. . . . . . . . . . . . . . . . . . . . . . . . . . 69

Fuses . . . . . . . . . . . . . . . . . . . . . . . . . . .

70

Light

Bulbs.

. . . . . . . . . . . . . . . . . . . . . .

71

Miscellaneous . . . . . . . . . . . . . . . . . . . . . 69

PCV Valve . . . . . . . . . . . . . . . . . . . . . . . 69

Vehicle Identification . . . . . . . . . . . . . . . 67

Speedometer and

Odometer

. . . . . . . . . . . .

19

Spot Cleaner . . . . . . . . . . . . . . . . . . . . . . . .

39

Stains, Removal

Of.

. . . . . . . . . . . . . . . . . . 42

Starter,

Safety Switch . . . . . . . . . . . . . . . .

13

Starting Engine . . . . . . . . . . . . . . . . . . . . . .

13

Cold Weather . . . . . . . . . . . . . . . . . . . . .

13

Emergency . . . . . . . . . . . . . . . . . . . . . . . 33

Steering

Column Controls . . . . . . . . . . . . . . . . . . 12

Linkage . . . . . . . . . . . . . . . . . . . . . . . . . 53

Maintenance . . . . . . . . . . . . . . . . . . . . . . 53

Power.

. . . . . . . . . . . . . . . . . . . . . . . 15, 53

Tilt . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

15

Wheel . . . . . . . . . . . . . . . . . . . . . . . . . . .

15

Stereo, Radio and Tape . . . . . . . . . . . . . . . 27

Suspension

Front

. . . . . . . . . . . . . . . . . . . . . . . . . . . 65

Rear . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65

Swivel Seats . . . . . . . . . . . . . . . . . . . . . . . . 6

T

Tape System, Stereo . . . . . . . . . . . . . . . . . . 27

Tell Tale Lights . . . . . . . . . . . . . . . . . . . . .

21

Temperature

Control, Cooling and Heating . . . . .

24-

26

Gauge..

..

.......

.

...............

19

Thermostat

, Engine Cooling . . . . . . . . .

56, 69

Tilt Steering Wheel . . . . . . . . . . . . . . . . . . .

15

Tire

Care . . . . . . . . . . . . . . . . . . . . . . . . . . . .

61

Changing . . . . . . . . . . . . . . . . . . . . . 35, 62

Inflation

Pressure . . . . . . . . . . . . . . . . . .

61

Inspection . . . . . . . . . . . . . . . . . . . . . . . 63

Load Limit . . . . . . . . . . . . . . . . . . . . . . . 62

Replac

ement

. . . . . . . . . . . . . . . . . . . . . 62

Rotation

. . . . . . . . . . . . . . . . . . . . . . . . . 63

Snow . . . . . . . . . . . . . . . . . . . . . . . . . . . 63

Traction

. . . . . . . . . . . . . . . . . . . . . . . . . 63

Tread Wear . . . . . . . . . . . . . . . . . . . . . . . 63

Towing............................

37

Trailer Hauling . . . . . . . . . . . . . . . . . . . . . . 9

81

SUBJECT

PAGE NO.

Transmission

Braking Effect

On Hills . . . . . . . . . . . . .

14

Checking Fluid Level . . . . . . . . . . . . . . .

50

Maintenance . . . . . . . . . . . . . . . . . . . . . .

50

Shift Controls . . . . . . . . . . . . . . . . . . . . .

13

Transmitter, Mobile Radio . . . . . . . . . . . . . 28

Tread Wear Indicators . . . . . . . . . . . . . . . . 63

Trim Care

Interior

. . . . . . . . . . . . . . . . . . . 39

Turn

Signals . . . . . . . . . . . . . . . . . . . . . . . .

15

u

Underbody Maintenance . . . . . . . . . . . . . . 66·

Undercoating . . . . . . . . . . . . . . . . . . . .

44

, 66

Upholstery . . . . . . . . . . . . . . . . . . . . . . . . . 39

v

Vehicle Identification . . . . . . . . . . . . . . . 3, 67

Volatile Cleaning Solvents, Caution. . . . . .

41

w

Warnipg Flasher, Hazard . . . . . . . . . . . . . . 33

Warning Lights

Brake

........................

. .

Charging

System

......

.

..........

.

Cluster

.........................

.

Low Fuel . . .

....................

.

Washers, Windshield

.................

.

Washing

..........................

.

Waxing

..............

.

..

· · · · · · · · · · ·

Weight Distribution

.................

.

Wheel Alignment

...................

.

Wheel Bearings

21
21
2 1
22
23

43
43

2

69

Front

. . . . . . . . . . . . . . . . . . . . . . . . . . . 64

Rear . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64

Wheel Changing . . . . . . . . . . . . . . . . . . 35, 62

Wheel, Tilt Steering . . . . . . . . . . . . . . . . . .

15

Windows...........................

29

Latch . . . . . . . . . . . . . . . . . . . . . . . . . . .

30

Screen . . . . . . . . . . . . . . . . . . . . . . . . . .

40

Windshield

Defrosting . . . . . . . . . . . . . . . . . . .

24

- 26

Washers . . . . . . . . . . . . . . . . . . . . . . . . . 23

Wipers

.........................

.

Wrecker, Towing

...................

.

z

Zone Offices

23

37

Canada . . . . . . . . . . . . . . . . . . . . . . . . . . 75

Mexico . . . . . . . . . . . . . . . . . . . . . . . . . . 74

United States . . . . . . . . . . . . . . . . . . . . . 74

Zone Territories

Canada . . . . . . . . . . . . . . . . . . . . . . . . . . 75

United States . . . . . . . . . . . . . . . . . . . . . 73

GAS

STATION

INFORMATION

Refer

to

SERVICE AND

MA

INTENANCE

section for details

on

removal and

installation

of

engine cover, placing vehicle

on

suitable hoist, etc.

CAUTION

To help prevent the possibility

of

fire or explosion, turn off

LP

gas

supply at the

LP

gas

tank

and

be

sure

all

pilots are out,

before filling

gasoline

tanks.

Always check that fluid inputs are made
into the correct filler opening to help
avoid

serious per

sonal

injury

and

prop-

erty damag

e.

GAS CAP- Located

on

the

left side

of

the

vehicle, directly under

the

driver's window .

See

gas cap removal procedure

in

SERVICE

AND MAINTENANCE section.

GASOLINE RECOMMENDATION- Use an

unleaded fuel

of

at least

91

Research

Octane-Symoo

l Number 2. Additional

details on Fuel Requirements are given in

the

SERVICE

AND MAINTENANCE

section.

FRONT

ACCESS DOORS- Release by

turning lat ch knob

to

the

left to loosen.

ENGINE

OIL

DIPSTICK- Located inside the
left front access door. Check oil level as
the last operation in a fuel stop. Maintain
between

"ADD"

and

"FULL"

marks on

dipstick.

ENGINE OIL RECOMMENDATION- Use
only high quality SE oils. The chart in the

SERVICE AND MAINTENANCE section

will se

rve as

a guide for selecting

proper

oil viscosity.

TIRE INFLATION

PRESSURES- Check

at

least monthly. Keep inflated

to

pressures

shown

on

tire placard affixed

on

the

inside

of

the glove

compartment

door.

WINDSHIELD WASHER- Check reservoir

fluid level regularly.

Use a washer fluid,

such as

GM

Optikleen.

ENERGIZER (BATTERIES) - Check fluid
level monthly. Add only colorless, odorless

drinking water

or

distilled water to bring

level to split ring in filler opening.

..

·.