Final Check

STALL TESTING
Stall Test Procedure
1. Check A/T and engine fluid levels. If necessary, add.




2. Drive vehicle for approx. 10 minutes or until engine oil and ATF reach operating temperature.

ATF operating temperature: 50 - 80°C (122 - 176°F)




3. Set parking brake and block wheels.
4. Install a tachometer where it can be seen by driver during test.
- It is good practice to put a mark on point of specified engine rpm on indicator.
5. Start engine, apply foot brake, and place selector lever in "D" position.
6. Accelerate to wide-open throttle gradually while applying foot brake.




7. Quickly note the engine stall revolution and immediately release throttle.
- During test, never hold throttle wide-open for more than 5 seconds.

Stall revolution: 2,440 - 2,640 rpm




8. Move selector lever to "N" position.
9. Cool off ATF.
- Run engine at idle for at least one minute.
10. Repeat steps 5 through 9 with selector lever in "2", "1" and "R" positions.

JUDGEMENT OF STALL TEST
The test result and possible damaged components relating to each result are shown in the illustration. In order to pinpoint the possible damaged components, follow the WORK FLOW.

NOTE:
Stall revolution is too high in "D" or "2" position:
- Slippage occurs in 1st gear but not in 2nd and 3rd gears .... Low one-way clutch slippage.
- Slippage occurs at the following gears:
1st through 3rd gears in "D" position and engine brake functions.
1st and 2nd gears in "2" position and engine brake functions with accelerator pedal released (fully closed throttle) .....Forward clutch or forward one-way clutch slippage.

Stall revolution is too high in "R" position:
- Engine brake does not function in "1" position .... Low & reverse brake slippage.
- Engine brake functions in "1" position .... Reverse clutch slippage.

Stall revolution with in specifications:
- Vehicle does not achieve speed of more than 80 km/h .... One-way clutch seizure in torque converter housing.

CAUTION: Be careful since automatic fluid temperature increases abnormally.
- Slippage occurs in 3rd and 4th gears in "D" position .... High clutch slippage.
- Slippage occurs in 2nd and 4th gear in "D" position ..... Brake band slippage.

Stall revolution less than specifications:
- Poor acceleration during starts One-way clutch seizure in torque converter.




JUDGEMENT OF STALL TEST

PRESSURE TESTING




- Location of pressure test ports.
- Always replace line pressure plugs as they are self-sealing bolts.

Line Pressure Test Procedure
1. Check A/T and engine fluid levels. If necessary, add fluid.




2. Drive vehicle for approx. 10 minutes or until engine oil and ATF reach operating temperature.

ATF operating temperature: 50 - 80°C (122 - 176°F)







3. Install pressure gauge to corresponding line pressure port.




4. Set parking brake and block wheels.
- Continue to depress brake pedal fully while line pressure test is being performed at stall speed.
5. Start engine and measure line pressure at idle and stall speed.
- When measuring line pressure at stall speed, follow the stall test procedure.

PAGE REFERENCE:

JUDGEMENT OF LINE PRESSURE TEST