Stall Speed Test

The stall speed test is used to check the overall performance of the transmission and engine by measuring the maximum engine speeds in the forward and reverse ranges.

Important: This test should always be performed at a normal operating fluid temperature of 70 to 80° C (158 to 176° F). DO NOT run engine at stall speed for more than five seconds continuously. If this precaution is not observed, transmission fluid temperatures may rise excessively high, causing transmission damage.

1. Check transmission fluid level. It should be between the Full Hot and Low Hot ranges on the dipstick.
2. Apply parking brake and block vehicle wheels.
3. Turn ignition switch to ON.
4. Press brake pedal fully.

CAUTION: The brake pedal must be fully pressed throughout the stall speed test. Failure to do so could result in personal injury and/or property damage due to possible unexpected vehicle movement.

5. Ensure that the manual selector is in the Park (P) position.
6. Start engine.
7. Move manual selector to Reverse (R) position.
8. Press accelerator pedal fully at Wide Open Throttle (WOT). While watching tachometer, quickly read and record the engine speed (rpm) once it becomes constant (stall speed).
9. Release accelerator pedal immediately after stall speed is recorded.
10. Move manual selector to Drive (D) position.
11. Press accelerator pedal fully (WOT). While watching tachometer, quickly read and record the engine speed (rpm) once it becomes constant (stall speed).
12. Release accelerator pedal immediately after stall speed is recorded.
13. Return selector lever to Park (P) position and turn ignition switch to LOCK.

Evaluation





- Stall speed should fall within 2300 to 2600 rpm in all tested gear positions. Refer to the STALL SPEED TEST DIAGNOSIS for causes of higher or lower stall speed.