Stall Speed Test

Stall Speed Test

The stall test checks the operation of the following items:
- Torque converter clutch
- Forward clutch
- Low one-way clutch (7A089)
- Reverse clutch
- Low-intermediate band
- Engine performance

1. Connect tachometer to engine.

Note: The stall test should only be performed with the engine and transaxle at normal operating temperatures.

WARNING: APPLY THE SERVICE AND PARKING BRAKES FIRMLY WHILE PERFORMING EACH STALL TEST.

CAUTION: After testing each of the following ranges ( O/D, D, 1, R), move shift control selector lever to N (NEUTRAL) and run engine for about 15 seconds to allow torque converter (7902) to cool before testing next range.

CAUTION: Do not maintain WOT in any gear range for more than five seconds.

2. Press accelerator pedal to floor (WOT) in each range. Record rpm reached in each range. Stall speed should be 1791-2097 rpm (3.8L).

CAUTION: If engine rpm recorded by tachometer exceeds maximum specified rpm, release accelerator pedal immediately. Clutch or band slippage is indicated.






If the stall speeds were too high, refer to the Stall Speed Chart (shown). If the stall speeds were too low, first check engine tune-up. If engine is OK, remove torque converter and check torque converter clutch for slippage.