Torque Converter Stall Test: Notes

This test measures the maximum engine speed at the time the torque converter stalls with the selector lever in the D or R position. With this test, the holding abilities of the clutch and brake that are incorporated in the transaxle can be checked.

1. Check the transmission fluid level, transmission fluid temperature, and engine coolant temperature.
   • Transmission fluid level: In the "HOT" range on the oil level gauge
   • Transmission fluid temperature: 60 to 70°C (140 to 158°F)
   • Engine coolant temperature: 80 to 100°C (176 to 212°F)
     NOTE: Use scan tool (M.U.T.-III) to measure the transmission fluid temperature.
2. Operate the parking brake securely, and then chock the wheels.
3. Start the engine.
   CAUTION:

   • Do not maintain the WOT condition for 5 seconds or longer.
   • When continuing the stall test, make sure that the fluid temperature does not exceed 70°C (158°F). If the transmission fluid temperature exceeds 70°C (158°F), run the engine at around 1, 000 r/min for 1 minute or longer to lower the transmission fluid temperature to 70°C (158°F) or less.
4. Move the selector lever to the D range and fully depress the accelerator pedal. Quickly read the maximum engine speed at this time.

   Standard value - Stall speed: Approximately 2, 300 r/min 

5. Move the selector lever to the R range, and then repeat the previous step.

   Standard value - Stall speed: Approximately 2, 300 r/min