Hydraulic Test

HYDRAULIC TEST, PREPARATION:
- Warm up the transaxle fluid.
- Remove the transaxle case test plug and connect the hydraulic pressure gauge. (SST 09992-00094)

CAUTION:
- Do the test at normal operating fluid temperature 50 - 80°C (122 - 176°F).
- The line pressure test should always be carried out in pairs
- One should observe the conditions of wheels or wheel stoppers outside the vehicle while the other is doing the test.

MEASURE LINE PRESSURE:



- Fully apply the parking brake and chock the front wheels.
- Start the engine and check idling RPM.
- Step down strongly on the brake pedal with your left foot and shift into D position.
- Measure the line pressure when the engine is idling.
- Press the accelerator pedal all the way down.
- Quickly read the highest line pressure when engine speed reaches stall speed.
- In the same manner, perform the test in R position.



- If the measured pressures are not up to specified value, recheck the throttle cable adjustment and do a retest.

EVALUATION:
- If the measured values at all positions are higher than specified:
- Throttle cable out of adjustment
- Throttle valve defective
- Regulator valve defective

- If the measured values at all positions are lower than specified:
- Throttle cable out of adjustment
- Throttle valve defective
- Regulator valve defective
- Oil pump defective
- Underdrive one-way clutch not operating properly

- If pressure is low in the D position only:
- D position circuit fluid leakage
- Forward clutch defective
- Underdrive one-way clutch not operating properly

- If pressure is low in the R position only:
- R position circuit fluid leakage
- Direct clutch defective
- First and reverse brake defective
- Underdrive one-way clutch not operating properly