1995 TOYOTA SUPRA Service Repair Manual

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Page 529 of 2543

TOYOTA SUPRA 1995 Service Repair Manual EVALUATION
Problem Possible cause

(a) Stall speed low in

Page 530 of 2543

TOYOTA SUPRA 1995 Service Repair Manual TIME LAG TEST
When the shift lever is shifted while the engine is idling, there will be a certain time lapse or lag before the
shock can be felt. This is used for checking the condition of the O/D dir

Page 531 of 2543

TOYOTA SUPRA 1995 Service Repair Manual EVALUATION
If N "D or N "R time lag is longer than specified:
Problem Possible cause

Page 532 of 2543

TOYOTA SUPRA 1995 Service Repair Manual HYDRAULIC TEST
MEASURE LINE PRESSURE
NOTICE:
wDo the test at normal operating fluid temp. 50±805C (122±1765F)
wThe line pressure test should always be carried out in pairs. One technician should obs

Page 533 of 2543

TOYOTA SUPRA 1995 Service Repair Manual SPECIFIED LINE PRESSURE
Line pressure:
Condition D position kPa (kgf/cm2 psi) R position kPa (kgf/cm2, psi)

SPECIFIED LINE PRESSURE
Line pressure:
Condition D position kPa (kgf/cm2 psi) R position kPa (kgf/cm2, psi) Idling471±530 (4 8±5 4 68±77)686±785 (7 0±8 0 100±114)Idling471±530 (4.8±5.4, 68±77)686±785 (7.0±8.0, 100±114)
Stall1 334±1 470 (13 6±15 0 193±213)1 697±2 030 (17 3±20 7 246±294) Stall1,334±1,470 (13.6±15.0, 193±213)1,697±2,030 (17.3±20.7, 246±294)
If the measured pressures are not up to specified values, check the No.5 solenoid valve and retest.
EVALUATION

Problem

Possible cause

If the measured values at allpositions are higher
Throttle cable out of adjustment
Throttle valve defective If the measured values at all positions are higher. Throttle valve defective
Regulator valve defective

If the measured values at allpositions are lower
Throttle cable out of adjustment
Throttle valve defective
Regulator valve defective

If the measured values at all positions are lower. Regulator valve defective
Oil pump defective
O/D direct clutch defective

Ifpressure is low in the Dposition only D position circuit fluid leakage
If pressure is low in the D position only.g
Forward clutch defective

Ifpressure is low in the Rposition only
R position circuit fluid leakage
Direct clutch defective

If pressure is low in the R position only. Direct clutch defective
First and reverse brake defective
± A340E (2JZÐGTE) AUTOMATIC TRANSMISSIONTROUBLESHOOTINGAT2±49

Page 534 of 2543

TOYOTA SUPRA 1995 Service Repair Manual MEASURE ACCUMULATOR BACK PRESSURE
NOTICE:
wDo the test at normal operating fluid temp. 50±805C (122±1765F).
wBe careful to prevent the oil pressure gauge hose from interfering with the exhaust pipe.

Page 535 of 2543

TOYOTA SUPRA 1995 Service Repair Manual (f) Fully apply the parking brake and chock the 4 wheels.
(g) Start the engine and check idling speed.
(h) Keep your left foot pressed firmly on the brake pedal and shift into D position.
(i) Meas

Page 536 of 2543

TOYOTA SUPRA 1995 Service Repair Manual SPECIFIED ACCUMULATOR BACK PRESSURE (D position, Idling)
Condition of ECM terminal SLN Not ground Ground

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