Test Results
- If stall speed is too high in "D", but OK in "1", one-way clutch is defective. If stall speed is too high in both ranges, forward clutch is faulty.
- If stall speed is about 200 RPM below normal, check engine operation (ignition timing, fuel injection, compression). If stall speed is about 400 RPM too low, stator one-way clutch in torque converter is probably defective and converter should be replaced.