Toyota T100 1996 Service Manual page 538

DI−274
7. HYDRAULIC TEST
Measure the line pressure.
NOTICE:
Do the test at normal operation fluid temperature 50 − 80°C (122 − 176°F).
S
The line pressure test should always be carried out in pairs. One technician should observe
S
the conditions of wheels or wheel stoppers outside the vehicle while the other is doing the test.
Be careful to prevent SST's hose from interfering with the exhaust pipe.
S
(1) Warm up the fluid.
(2) Remove the test plug on the transmission case right side and connect SST.
(See page
SST 09992−00094 (09992−00150, 09992−00270)
(3) Fully apply the parking brake and chock the 4 wheels.
(4) Start the engine and check idling speed.
(5) Keep your left foot pressed firmly on the brake pedal and shift into D position.
(6) Measure the line pressure when the engine is idling.
(7) Depress the accelerator pedal all the way down. Quickly read the highest line pressure when
engine speed reaches stall speed.
NOTICE:
Release the accelerator pedal and stop test if the rear wheels begin to rotate before the engine speed
reaches specified stall speed.
(8) In the same manner, do the test in R position.
Specified line pressure:
3RZ−FE
Condition
Idling
Stall
5VZ−FE
Condition
Idling
Stall
If the measured pressures are not up to specified values, recheck the throttle cable adjustment and retest.
Evaluation
If the measured value at all positions are higher
If the measured value at all positions are lower
If pressure is low in the D position only
If pressure is low in the R position only
1996 TOYOTA T100 (RM449U)
DIAGNOSTICS
AT−26 and AT−33 for the location to connect SST)
D position
363 − 422 (3.7 − 4.3, 53 − 61)
932 − 1,177 (9.5 − 12.0, 135 − 171)
D position
363 − 422 (3.7 − 4.3, 53 − 61)
902 − 1,147 (9.2 − 11.7, 131 − 166)
Problem
− AUTOMATIC TRANSMISSION
2
kPa (kgf/cm , psi)
2
kPa (kgf/cm , psi)
S Throttle cable out of adjustment
S Throttle valve defective
S Regulator valve defective
S Throttle cable out of adjustment
S Throttle valve defective
S Regulator valve defective
S Oil pump defective
S O/D direct clutch defective
S D position circuit fluid leakage
S Forward clutch defective
S R position circuit fluid leakage
S Direct clutch defective
S 1st and reverse brake defective
R position kPa (kgf/cm
490 − 588 (5.0 − 6.0, 71 − 85)
1,294 − 1,638 (13.2 − 16.7, 188 − 238)
R position kPa (kgf/cm
608 − 696 (6.2 − 7.1, 88 − 101)
1,432 − 1,942 (14.6 − 19.8, 208 − 282)
Possible cause
2
, psi)
2
, psi)