Stall Speed Test

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

CAUTION:
- Perform the test at normal operation fluid temperature (122 - 176°F or 50 - 80°C).
- Do not continuously 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
a. Chock the front and rear wheels.
b. Connect a tachometer to the engine.
c. Fully apply the parking brake.
d. Step down strongly on the brake pedal with your left foot.
e. Start the engine.
f. Shift into the D range. Step all the way down on the accelerator pedal with your right foot. Quickly read the stall speed at this time.

Stall speed:
A540E (2VZ-FE): 2,450 ± 150 rpm
A540H (3S-FE): 2,320 ± 150 rpm

g. Perform the same test in R range.

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

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

c. If the stall speed in R range is higher than specified:
- Line pressure too low
- Direct clutch slipping
- First and reverse brake slipping
- O/D one-way clutch not operating properly

d. If the stall speed in both R and D ranges are higher than specified:
- Line pressure too low
- Improper fluid level
- O/D one-way clutch not operating properly