A/T Stall Speed Test

A/T Stall Speed Test

1. Make sure the transmission fluid is filled to the proper level. ATF Level Check

2. Apply the parking brake, and block all four wheels.

3. Connect the HDS to the DLC (A), and go to the A/T data list. If the HDS does not communicate with the PCM, troubleshoot the DLC circuit. Testing and Inspection

4. Make sure the A/C switch OFF.

5. After the engine has warmed up to normal operating temperature (the radiator fan comes on), shift to D.

6. Firmly press the brake pedal, then fully press the accelerator pedal for 6 to 8 seconds, and note engine speed. Do not move the shift lever while raising engine speed.

7. Allow 2 minutes for cooling, then repeat the test in R.
NOTE:

- Do not test the stall speed for more than 10 seconds at a time.

- Stall speed tests should be used for diagnostic purposes only.

- The stall speed should be the same in D and R.

- Do not test stall speed with the A/T pressure gauges installed.





8. If any of the stall speeds are out of the service limit, refer to the possible problems and probable causes listed in the table.