Stall Speed Test

NOTE: After each test, shift transaxle into Neutral and run engine for at least 15 seconds to cool torque converter and transmission fluid.

CAUTION: DO NOT maintain Wide Open Throttle (WOT) in any gear for more than 5 seconds. If engine RPM exceeds maximum specified stall speed, release accelerator immediately. Clutch or band slippage is indicated.

The stall speed test checks the operation of the following items:

Converter One-Way Clutch
Forward Clutch
Low One-Way Clutch
Reverse Clutch
Low-Intermediate Band
Engine Performance

Apply service and parking brakes. Connect tachometer to engine, and record RPM reached in each gear selector range (except Neutral) at WOT. Stall speed should be 2200-2500 RPM. If stall speeds exceed specification, ensure engine is mechanically okay and tuned to specification. If engine is okay, remove torque converter and check torque converter one-way clutch for slippage.
If stall speed is too high in "D", "2", "1", the following components may be faulty:
- Forward Clutch
- Forward One-Way Clutch
If stall speed is too high in "R", the following components may be faulty:
- Low One-Way Clutch
- Low/Reverse Clutch
- Reverse Clutch