Stall Test: Notes
- Perform the mechanical system test preparation. (See MECHANICAL SYSTEM TEST PREPARATION .)
- Apply the parking brake firmly, and set the wheel blocks for both the front and rear wheels.
- Start the engine.
- Measure the stall speed in the D position.
- Strongly depress the brake pedal with the left foot.
- Shift the selector lever to the D position.CAUTION:
- To prevent damage to the transaxle, measure the stall speed (Step (3)-(4)) within 5 s.
- Slowly depress the accelerator pedal fully with the right foot all the way down.
- Read the engine speed quickly when the speed is stabilized, and remove the right foot from the accelerator pedal.
- Shift the selector lever to the N position and idle for 1 min or more.
- Measure the stall speed in the M (1st gear) and R positions using the same procedure.
- If there is any malfunction, one of the following causes may have occurred:
POSSIBLE CAUSE DESCRIPTIONCondition Possible cause Higher than specification Higher in R, D, and M (1GR) position Line pressure is low - Oil pump wear
- ATF leakage from oil pump, control valve body, and transaxle case
- Pressure regulator valve sticking
- TR control valve sticking
- Pressure control solenoid operation malfunction
- Low and reverse brake slippage, and damage of one-way clutch
Higher in D and M (1GR) position - Low clutch slippage
- One-way clutch damage
Higher in R position Perform road test to determine whether problem is in R-3-5 brake or low and reverse brake - Engine brake operates in M (1GR) position
- R-3-5 brake slippage
- Engine braking does not operate in M (1GR) position
- Low and reverse brake slippage
Lower than specification Lower in R, D, and M (1GR) position - Engine malfunction
- One-way clutch slippage in torque converter