Stall Speed Test

STALL TEST
The object of this test is to check the overall performance of the transaxle engine by measuring the stall speeds in the D and R positions.

NOTICE:
- Perform the test at normal operating fluid temperature 50-80°C (122-176°F).
- Do not continuity run this test longer than 5 seconds.
- To ensure safety conduct this test in a wide, clear, level area, which provides good traction.
- The stall 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 performing the test.




MEASURE STALL SPEED
1. Check the front and rear wheels.
2. Connect a tachometer to the engine.
3. Fully apply the parking brake.
4. Keep your left foot pressed firmly on the brake pedal.
5. Start the engine.
6. Shift into the D position. Step all the way down on the accelerator pedal with your right foot. Quickly read the stall speed at this time.

Stall speed: 2,500 ± 150 rpm

7. Perform the same test in R position.
Quickly read the stall speed at this time.

Stall speed: 2,500 ± 150 rpm

EVALUATION
1. If the stall speed is the same for both positions without the rear wheels rotating but lower than specified value:
- Engine output may be insufficient
- Stator one-way clutch is not operating properly

2. If the stall speed in D position is higher than specified:
- Line pressure too low
- Forward clutch slipping
- No.2 one-way clutch operating properly
- Underdrive one-way clutch not operating properly

3. If the stall speed in R position is higher than specified:
- Line pressure too low
- Direct clutch slipping
- First and reverse brake slipping
- Underdrive brake slipping

4. If the stall speed in both R and D positions are higher than specified:
- Line pressure too low
- Improper fluid level
- Underdrive brake slipping