Preparation

NOTE: This test is performed to determine if there is slippage of the friction elements or a malfunction of the hydraulic components.

WARNING:
- Never unscrew the radiator cap while the engine is hot.
- Wrap a thick cloth around the cap when loosening.

1. Engage the parking brake and put wheel chocks at the front and rear of each wheel.
2. Warm the engine thoroughly to raise the ATF temperature to an operating level of 140-158° F (60-70° C).
3. Check, and correct as necessary, the engine coolant, engine oil, and ATF levels before testing.
4. Connect a tachometer to the engine.