Infiniti QX4 2000 Maintenance Manual

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CONTENTS
PRECAUTIONS ...............................................................2
Supplemental Restraint System (SRS) AIR
BAGand SEAT BELT PRE-TENSIONER...............2
PREPARATION ...............................................................3
Special Service Tool....................................................3
GENERAL MAINTENANCE............................................4
PERIODIC MAINTENANCE ............................................6
Schedule 1...................................................................7
EMISSION CONTROL SYSTEM MAINTENANCE CHASSIS AND BODY MAINTENANCE
Schedule 2...................................................................9
EMISSION CONTROL SYSTEM MAINTENANCE CHASSIS AND BODY MAINTENANCE
RECOMMENDED FLUIDS AND LUBRICANTS...........11
Fluids and Lubricants ................................................11
SAE Viscosity Number ..............................................12
GASOLINE ENGINE OIL GEAR OIL
Anti-freeze Coolant Mixture Ratio .............................12
ENGINE MAINTENANCE..............................................13
Checking Drive Belts.................................................13
-DRAINING ENGINE COOLANT-
-REFILLING ENGINE COOLANT-
-FLUSHING COOLING SYSTEM-
Checking Fuel Lines..................................................16
Changing Fuel Filter..................................................16
Changing Air Cleaner Filter .......................................17
VISCOUS PAPER TYPE
Changing Engine Oil..................................................17
Changing Oil Filter.....................................................18
Changing Spark Plugs...............................................19
Checking EVAP Vapor Lines.....................................20
CHASSIS AND BODY MAINTENANCE.......................21
Checking A/T Fluid ....................................................21
Changing A/T Fluid....................................................21
...............................................................12
WITH CONSULT WITHOUT CONSULT
..........................................12
.................................................16
..........................................17
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........................8
......................10
..............................14
..............................15
..............................16
.........7
.........9
MAINTENANCE
SECTION
Checking All-mode 4WD Transfer Fluid....................22
Changing All-mode 4WD Transfer Fluid....................22
Checking Differential Gear Oil...................................23
Changing Differential Gear Oil ..................................24
LIMITED-SLIP DIFFERENTIAL GEAR
Balancing Wheels......................................................24
Tire Rotation..............................................................24
Checking Brake Fluid Level and Leaks.....................25
Checking Brake Lines and Cables............................25
Checking Disc Brake.................................................25
ROTOR CALIPER PAD
Checking Drum Brake ...............................................26
WHEEL CYLINDER DRUM LINING TEMPORARY METHOD FOR CHECKING LINING WEAR
Checking Steering Gear, Linkage and Transfer
Gear...........................................................................26
STEERING GEAR STEERING LINKAGE STEERING TRANSFER GEAR
Checking Power Steering Fluid and Lines................27
CHECKING FLUID LEVEL CHECKING LINES
Lubricating Locks, Hinges and Hood Latches...........27
Checking Seat Belts, Buckles, Retractors,
Anchors and Adjusters...............................................28
SERVICE DATA AND SPECIFICATIONS (SDS).........29
Engine Maintenance..................................................29
DRIVE BELT DEFLECTION DRIVE BELT TENSION SPARK PLUG TYPE
Chassis and Body Maintenance................................29
WHEEL BALANCE
...................................................................25
.................................................................25
........................................................................25
.....................................................................26
....................................................................26
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MA
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........................................27
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PRECAUTIONS

Supplemental Restraint System (SRS) “AIR BAG” and “SEAT BELT PRE-TENSIONER”
Supplemental Restraint System (SRS) “AIR BAG” and “SEAT BELT PRE-TENSIONER”
The Supplemental Restraint System such as “AIR BAG” and “SEAT BELTPRE-TENSIONER” used along with a seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain types of collision. The SRS system composition which is available to INFINITI QX4 is as follows:
I For a frontal collision
The Supplemental Restraint System consists of driver air bag module (located in the center of the steer­ing wheel), front passenger air bag module (located on the instrument panel on passenger side), seat belt pre-tensioners, a diagnosis sensor unit, warning lamp, wiring harness and spiral cable.
I For a side collision
The Supplemental Restraint System consists of side air bag module (located in the outer side of front seat), satellite sensor, diagnosis sensor unit (one ofcomponents of air bags for a frontal collision),wiring harness, warning lamp (one of components of air bags for a frontal collision).
Information necessary to service the system safely is included in the RS section of this Service Manual.
WARNING:
I To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death
in the event of a collision which would result in air bag inflation, all maintenance must be performed by an authorized INFINITI dealer.
I Improper maintenance, including incorrect removal and installation of the SRS, can lead to per-
sonal injury caused by unintentional activation of the system. For removal of Spiral Cable and Air Bag Module, see the RS section.
I Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this
Service Manual. Spiral cable and wiring harnesses covered with yellow insulation tape either just before the harness connectors or for the complete harness are related to the SRS.
NBMA0001
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MA-2

PREPARATION

Special Service Tool

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Special Service Tool
The actual shapes of Kent-Moore tools may differ from those of special service tools illustrated here.
Tool number (Kent-Moore No.) Tool name
KV10115801 (J38956) Oil filter cap wrench
Description
Removing oil filter
a: 64.3 mm (2.531 in)
NT375

Commercial Service Tool

Tool name (Kent-Moore No.)
Belt tension gauge (BT3373-F)
Description
Checking drive belt tension
AMA126
NBMA0002
NBMA0041
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NBMA0003

GENERAL MAINTENANCE

General maintenance includes those items which should be checked during the normal day-to-day operation of the vehicle. They are essential if the vehicle is to continue operating properly. The owners can perform checks and inspections themselves or they can have their INFINITI dealers do them.
OUTSIDE THE VEHICLE
The maintenance items listed here should be performed from time to time, unless otherwise specified.
Item Reference page Tires Check the pressure with a gauge periodically when at a service station,
including the spare, and adjust to the specified pressure if necessary. Check carefully for damage, cuts or excessive wear.
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Wheel nuts When checking the tires, make sure no nuts are missing, and check for any
loose nuts. Tighten if necessary.
Tire rotation Tires should be rotated every 12,000 km (7,500 miles). MA-24 Wheel alignment and
balance
Windshield wiper blades
Doors and engine hood
If the vehicle pulls to either side while driving on a straight and level road, or if you detect uneven or abnormal tire wear, there may be a need for wheel alignment. If the steering wheel or seat vibrates at normal highway speeds, wheel balancing may be needed.
Check for cracks or wear if they do not wipe properly.
Check that all doors and the engine hood operate smoothly as well as the trunk lid and back hatch. Also make sure that all latches lock securely. Lubri­cate if necessary. Make sure that the secondary latch keeps the hood from opening when the primary latch is released. When driving in areas using road salt or other corrosive materials, check lubrication frequently.
MA-24, SU-6, “Front
Wheel Alignment”
MA-27
INSIDE THE VEHICLE
The maintenance items listed here should be checked on a regular basis, such as when performing periodic maintenance, cleaning the vehicle, etc.
Item Reference page Lamps Make sure that the headlamps, stop lamps, tail lamps, turn signal lamps, and
other lamps are all operating properly and installed securely. Also check headlamp aim.
Warning lamps and buzzers/chimes
Windshield wiper and washer
Windshield defroster Check that the air comes out of the defroster outlets properly and in sufficient
Steering wheel Check that it has the specified play. Be sure to check for changes in the
Seats Check seat position controls such as seat adjusters, seatback recliner, etc. to
Seat belts Check that all parts of the seat belt system (e.g. buckles, anchors, adjusters
Brakes Check that the brake does not pull the vehicle to one side when applied.
Make sure that all warning lamps and buzzers/chimes are operating properly.
Check that the wipers and washer operate properly and that the wipers do not streak.
quantity when operating the heater or air conditioning.
steering condition, such as excessive play, hard steering or strange noises.
Free play: Less than 35 mm (1.38 in)
make sure they operate smoothly and that all latches lock securely in every position. Check that the head restrains move up and down smoothly and that the locks (if equipped) hold securely in all latched positions. Check that the latches lock securely for folding-down rear seatbacks.
and retractors) operate properly and smoothly and are installed securely. Check the belt webbing for cuts, fraying, wear or damage.
MA-28, RS-8, “Seat
Belt Inspection”
MA-4
GENERAL MAINTENANCE
Item Reference page
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Brake pedal and booster
Parking brake Check that the lever has the proper travel and make sure that the vehicle is
Automatic transmis­sion “Park” mecha­nism
Check the pedal for smooth operation and make sure it has the proper dis­tance under it when depressed fully. Check the brake booster function. Be sure to keep floor mats away from the pedal.
held securely on a fairly steep hill when only the parking brake is applied. Check that the lock release button on the selector lever operates properly
and smoothly. On a fairly steep hill check that the vehicle is held securely with the selector lever in the “P” position without applying any brakes.
BR-13, “Brake Pedal
and Bracket” and
BR-18, “Brake Booster”
BR-30, “Parking Brake
Control”
UNDER THE HOOD AND VEHICLE
The maintenance items listed here should be checked periodically (e.g. each time you check the engine oil or refuel).
Item Reference page
Windshield washer fluid
Engine coolant level Check the coolant level when the engine is cold. MA-15 Radiator and hoses Check the front of the radiator and clean off any dirt, insects, leaves, etc.,
Brake fluid levels Make sure that the brake fluid levels are between the “MAX” and “MIN” lines
Battery Check the fluid level in each cell. It should be between the “MAX” and “MIN”
Engine drive belts Make sure that no belt is frayed, worn, cracked or oily. MA-13
Check that there is adequate fluid in the tank.
that may have accumulated. Make sure the hoses have no cracks, deformation, deterioration or loose connections.
on the reservoir.
lines.
MA-25
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Engine oil level Check the level on the dipstick after parking the vehicle on a level spot and
turning off the engine.
Power steering fluid level and lines
Automatic transmis­sion fluid level
Exhaust system Make sure there are no loose supports, cracks or holes. If the sound of the
Underbody The underbody is frequently exposed to corrosive substances such as those
Fluid leaks Check under the vehicle for fuel, oil, water or other fluid leaks after the
Check the level on the dipstick with the engine off. Check the lines for improper attachment, leaks, cracks, etc.
Check the level on the dipstick after putting the selector lever in “P” with the engine idling.
exhaust seems unusual or there is a smell of exhaust fumes, immediately locate the trouble and correct it.
used on icy roads or to control dust. It is very important to remove these substances, otherwise rust will form on the floor pan, frame, fuel lines and around the exhaust system. At the end of winter, the underbody should be thoroughly flushed with plain water, being careful to clean those areas where mud and dirt can easily accumulate.
vehicle has been parked for a while. Water dripping from the air conditioner after use is normal. If you should notice any leaks or gasoline fumes are evident, check for the cause and correct it immediately.
MA-17
MA-27
MA-21
MA-21
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MA-5
NBMA0004

PERIODIC MAINTENANCE

Two different maintenance schedules are provided, and should be used, depending upon the conditions in which the vehicle is mainly operated. After 60,000 miles (96,000 km) or 48 months, continue the periodic
maintenance at the same mileage/time intervals.
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Schedule 1
Schedule 2
Follow Periodic Maintenance Schedule 1 if your driving habits frequently includes one or more of the following driving conditions:
I Repeated short trips of less than 5 miles (8 km). I Repeated short trips of less than 10 miles (16 km) with outside tempera-
tures remaining below freezing.
I Operating in hot weather in stop-and-go “rush hour” traffic. I Extensive idling and/or low speed driving for long distances, such as police,
taxi or door-to-door delivery use.
I Driving in dusty conditions. I Driving on rough, muddy, or salt spread roads. I Towing a trailer, using a camper or a car-top carrier.
Follow Periodic Maintenance Schedule 2 if none of the driving conditions shown in Schedule 1 apply to your driving habits.
Emission Control Sys­tem Maintenance
Chassis and Body Maintenance
Emission Control Sys­tem Maintenance
Chassis and Body Maintenance
MA-7
MA-8
MA-9
MA-10
Maintenance for off-road driving
Whenever you drive off-road through sand, mud or water, more frequent maintenance may be required of the following items:
G Brake pads and rotors G Brake lining and drums G Brake lines and hoses G Wheel bearing grease G Differential, transmission and transfer oil G Steering linkage G Propeller shaft and drive shafts G Air cleaner filter
MA-6
PERIODIC MAINTENANCE

Schedule 1

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Schedule 1

EMISSION CONTROL SYSTEM MAINTENANCE

or
- Page
Section
Reference
60
(96)
(90)
56.25
(84)
52.5
(78)
48.75
45
(72)
(66)
41.25
(60)
37.5
- Content Title
48
45
42
39
36
33
30
[R] MA-19
EM-18, “Tim-
ing Belt”
NBMA0004S01
NBMA0004S0101
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Abbreviations: R = Replace. I = Inspect. Correct or replace if necessary. [ ]: At the mileage intervals only
Miles x
(54)
33.75
30
(48)
(42)
26.25
(36)
22.5
(30)
18.75
15
(24)
(18)
11.25
7.5
(12)
(6)
3.75
(km x
1,000
27
24
21
18
15
12
9
6
3
1,000)
Months
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Drive belts I* I* MA-13
Air cleaner filter NOTE (1) [R] [R] MA-17
EVAP vapor lines I* I* MA-20
Fuel lines I* I* MA-16
Fuel filter* NOTE (2) MA-16
Engine coolant NOTE (3) R* MA-14
Engine oil RRRRRRRRRRRRRRRR MA-17
Engine oil filter (Use part
No. 15208-31U00 or
equivalent.)
Spark plugs (PLATINUM-
TIPPED type)
MAINTENANCE OPERATION MAINTENANCE INTERVAL
Perform at number of miles,
kilometers or months,
whichever comes first.
Timing belt Replace every 105,000 miles (168,000 km)
NOTE:
(1) If operating mainly in dusty conditions, more frequent maintenance may be required.
(2) When the filter becomes clogged, the vehicle speed cannot be increased as the driver wishes. In such an event, replace the filter.
(3) After 60,000 miles (96,000 km) or 48 months, replace every 30,000 miles (48,000 km) or 24 months.
Maintenance items and intervals with “*” are recommended by INFINITI for reliable vehicle operation. The owner need not perform such maintenance in order to maintain the
emission warranty or manufacturer recall liability. Other maintenance items and intervals are required.
MA-7
Schedule 1 (Cont’d)
PERIODIC MAINTENANCE
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CHASSIS AND BODY MAINTENANCE

- Page
Section
Reference
60
(96)
(90)
56.25
(84)
52.5
(78)
48.75 45
(72)
(66)
41.25
(60)
37.5
(54)
33.75
or
- Content Title
48
45
42
39
36
33
30
27
MA-26
NOTE (6)
Shaft”
AX-10, “Drive
AX-4, “Front
Wheel Bearing”
tenance Items”
RS-15, “Main-
HA-124, “Venti-
lation Air Filter”
ACTUATOR/
EL-191, “ASCD
NBMA0004S0102
PUMP CHECK”
Abbreviations: R = Replace. I = Inspect. Correct or replace if necessary. L = Lubricate
30
26.25
22.5
18.75 15
11.25
7.5
3.75
Miles x
(48)
(42)
(36)
(30)
(24)
(18)
(12)
(6)
1,000
(km x 1,000)
24
21
18
15
12
9
6
3
Months
IIIIIIIIMA-25, 26
IIIIIIII
NOTE (1) IIIIMA-21, 22, 23
MAINTENANCE OPERATION MAINTENANCE INTERVAL
Perform at number of miles,
kilometers or months, whichever
comes first.
Brake lines & cables IIIIMA-25
Brake pads, rotors, drums & lin-
ings
Automatic transmission & all-
mode 4WD transfer fluid & dif-
ferential gear oil (exc. LSD)
LSD gear oil NOTE (1) IRIRMA-24
Steering gear, linkage & transfer
gear, axle & suspension parts
Tire rotation NOTE (2) MA-4
Drive shaft boots IIIIIIII
Propeller shaft NOTE (3) LLLLLLLLMA-23
Front wheel bearing grease NOTE (4) IRIR
Exhaust system IIIIIIIIMA-21
Ventilation air filter IRIRIRIR
Supplemental air bag systems NOTE (5)
ASCD vacuum hoses IIII
NOTE:
(1) If towing a trailer, using a camper or a car-top carrier, or driving on rough or muddy roads, change (not just inspect) fluid (A/T, all mode 4WD transfer)/differential gear oil (exc.
LSD) at every 30,000 miles (48,000 km) or 24 months, and change LSD gear oil every 15,000 miles (24,000 km) or 12 months.
(2) Refer to “Tire rotation” under the “GENERAL MAINTENANCE” heading earlier in this section.
(3) The propeller shaft should be re-greased after being immersed in water.
(4) If operating frequently in water, replace grease every 3,750 miles (6,000 km) or 3 months.
(5) Inspect the air bag system 10 years after the date of manufacture noted on the FMVSS certification label.
(6) Refer to SU-5, “Front Suspension Parts” and SU-16, “Rear Suspension Parts”, AX-3, “Front Axle Parts” and AX-18, “Rear Axle Parts”.
MA-8
PERIODIC MAINTENANCE

Schedule 2

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Schedule 2

EMISSION CONTROL SYSTEM MAINTENANCE

or
- Page
60
52.5
45
37.5
- Content Title
(96)
(84)
(72)
(60)
48
42
36
30
Reference Section
NBMA0004S02
NBMA0004S0201
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Abbreviations: R = Replace. I = Inspect. Correct or replace if necessary. [ ]: At the mileage intervals only
30
(48)
(36)
22.5
15
(24)
7.5
(12)
(km x 1,000)
Miles x 1,000
24
18
12
6
Months
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MAINTENANCE OPERATION MAINTENANCE INTERVAL
Perform at number of miles, kilometers
or months, whichever comes first.
Drive belts I* I* MA-13
Air cleaner filter [R] [R] MA-17
EVAP vapor lines I* I* MA-20
Fuel lines I* I* MA-16
Fuel filter* NOTE (1) MA-16
Engine coolant NOTE (2) R* MA-14
Engine oil RRRRRRRR MA-17
Engine oil filter (Use part No. 15208-
31U00 or equivalent.)
Spark plugs (PLATINUM-TIPPED type) [R] MA-19
Timing belt Replace every 105,000 miles (168,000 km) EM-18, “Timing Belt”
MA-9
NOTE:
(1) When the filter becomes clogged, the vehicle speed cannot be increased as the driver wishes. In such an event, replace the filter.
(2) After 60,000 miles (96,000 km) or 48 months, replace every 30,000 miles (48,000 km) or 24 months.
Maintenance items and intervals with “*” are recommended by INFINITI for reliable vehicle operation. The owner need not perform such maintenance in order to maintain the
emission warranty or manufacturer recall liability. Other maintenance items and intervals are required.
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