Torque Converter Stall Speed Test
CAUTION:
DO NOT
perform torque converter stall speed test for more than 10 seconds, or transaxle may be damaged. DO NOT
move shift lever while increasing engine speed.
- Apply parking brake, and block front wheels. Connect tachometer, and start engine. Warm engine to normal operating temperature. Place shift lever in "2".
- Fully depress brake pedal. Fully depress accelerator for 6-8 seconds, and note engine speed. This is the torque converter stall speed.
- Allow transaxle to cool for 2 minutes. Repeat test procedure in "D", "S" and "R".
- Torque converter stall speed should be the same in "D", "S", "2" and "R". Ensure torque converter stall speed is within specification. See TORQUE CONVERTER STALL SPEED table. If the torque converter stall speed is not within specification, see TORQUE CONVERTER STALL SPEED TROUBLE SHOOTING table for possible causes.
TORQUE CONVERTER STALL SPEED
| Application | Engine RPM |
|---|---|
| Standard | 2600 |
| Service Limit | 2450-2750 |
TORQUE CONVERTER STALL SPEED TROUBLE SHOOTING
| Stall Speed Test Results (RPM) | Probable Cause |
|---|---|
| High In "D", "S", "2" & "R" | Low Fluid Level, Low Oil Pump Output, Clogged Fluid Strainer, Pressure Regulator Valve Stuck Closed, Slipping Clutch |
| High In "R" | Slipping 4th Clutch |
| High In "D" & "S" | Slipping 1st Clutch, Defective One-Way Clutch |
| High In "2" | Slipping 2nd Clutch |
| Low In "D", "S", "2" & "R" | Engine Output Low, Torque Converter One-Way Clutch Slipping |