Toyota Corolla 2004 Repair Manual - TORQUE CONVERTER CLUTCH AND DRIVE PLATE
40–20
–AUTOMATIC TRANSMISSION / TRANS TORQUE CONVERTER CLUTCH AND DRIVE
PLATE (ATM)
TORQUE CONVERTER CLUTCH AND DRIVE PLATE (ATM)
INSPECTION
400LL–01
SST
Hold
Lock
Turn
Sample showing minimum amount of
powders in ATF
Actual Size
Free
AT0953
AT3306
D25367
1. INSPECT TORQUE CONVERTER CLUTCH ASSY
(a) Inspect the one–way clutch.
(1) Set SST into the inner race of the one–way clutch.
SST 09350–32014 (09351–32010)
(2) Set SST so that it fits in the notch of the converter
hub and outer race of the one–way clutch.
SST 09350–32014 (09351–32020)
(3) With the torque converter clutch setting up on its
side, check that the one–way clutch locks when it is
turned counterclockwise, and rotates smoothly
clockwise.
If necessary, clean the torque converter clutch and retest the
one–way clutch.
Replace the torque converter clutch if the one–way clutch still
fails the test.
(b) Determine the condition of the torque converter clutch
assy.
(1) If the inspection result of the torque converter clutch
assy meets the following item, replace the torque
converter clutch.
Malfunction item:
Any metallic sound is heard from the torque converter clutch during stall test or when the shift lever is in
neutral position.
One–way clutch is free or locked in both directions.
Fine powders exceeding the sample limit is identified
in ATF. (See the sample.)
HINT:
The sample shows the auto fluid of approx. 0.25 liters (0.26 US
qts, 0.22 Imp. qts) that is taken out from the removed torque
converter clutch
(c) Replace the ATF in the torque converter clutch.
(1) If the ATF is discolored and/or has a foul odor, com-
pletely stir the ATF in the torque converter clutch
and drain it with the face for installation facing up.
2004 COROLLA (RM1037U)
1370Author: Date:
OK NG
C11090
The Bottom is
Damaged
D25368
–AUTOMATIC TRANSMISSION / TRANS TORQUE CONVERTER CLUTCH AND DRIVE
PLATE (ATM)
40–21
(d) Clean and check the oil cooler and oil pipe line.
(1) If the torque converter clutch is inspected or the A TF
is exchanged, clean the oil cooler and oil pipe line.
HINT:
Spray compressed air of 196 kPa (2 kgf/cm
2
, 28 psi) from
the inlet hose.
If plenty of fine powders are identified in the ATF, add new
ATF using a bucket pump and clean it again.
(2) If the ATF is cloudy, inspect the oil cooler.
(e) Prevent deformation of the torque converter clutch and
damage to the oil pump gear.
(1) When any marks due to interference are found on
the end of the bolt for the torque converter clutch
and on the bottom of the bolt hole, replace the bolt
and the torque converter clutch.
(2) All of the bolts should have the same length.
(3) No missing spring washer.
C81014
2. INSPECT DRIVE PLATE & RING GEAR SUB–ASSY
(a) Set up a dial indicator and measure the drive plate runout.
(b) Check the damage of the ring gear.
Maximum runout: 0.20 mm (0.0079 in.)
If the runout is not within the specification or ring gear is damaged, replace the drive plate.
2004 COROLLA (RM1037U)
1371Author: Date:
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