Stall Speed Test
- Make sure the transmission fluid is filled to the proper level (see ATF LEVEL CHECK ).
- Apply the parking brake, and block all four wheels.
- Connect the HDS to the DLC (A) located under the driver's side of the dashboard.
- Turn the ignition switch to ON (II), or press the engine start/stop button to select the ON mode.
- Make sure the HDS communicates with the PCM, and go to the A/T Data List. If it does not, go to the DLC circuit troubleshooting (see DLC CIRCUIT TROUBLESHOOTING ).
- Make sure the A/C switch is OFF.
- Start the engine, and warm it up to normal operating temperature (the radiator fan comes on).
- Shift to D while pressing the brake pedal firmly, then press the accelerator pedal for 6 to 8 seconds, and note the engine speed. Do not move the shift lever or remove your foot off the brake pedal, while raising the engine speed.
- Allow 2 minutes for cooling between test, then repeat the test with the shift lever in S and R.NOTE:
- Do not test stall speed for more than 10 seconds at a time.
- Record the engine speed at 6 to 8 seconds after pressing the accelerator pedal. Higher engine speed will be indicated for 5 seconds.
- Stall speed tests should be used for diagnostic purposes only.
- The stall speed should be the same in D, S, and R.
- Do not test stall speed with A/T pressure gauges installed.
Stall Speed RPM:
Specification: 2, 000 RPM
Service Limit: 1, 800- 2, 100 RPM
- If any of the stall speeds are out of the service limit, refer to the problems and probable causes listed in the table below.
| Problem | Probable causes |
|---|---|
| Stall speed RPM high in D, S, and R |
|
| Stall speed RPM high in R | Slippage of 4th clutch |
| Stall speed RPM low in D, S, and R |
|