For 1990-2009 cars

Check | Causes
--- | ---
DEFINITION: A large engine RPM increase is noted with little or no vehicle rearward speed increase during the following conditions:

• | The engine is running.

• | The transmission is in Reverse range.

• | The vehicle is stopped or moving slowly.

• | The vehicle brakes are not applied.

• | The throttle is opened 25 percent or greater.

Direct and Reverse Clutch Assembly |

• | Damaged reverse clutch housing ball check valve

• | Damaged or cut piston

• | Damaged or worn clutch plates

Control Valve Body Accumulator Assembly |

• | Reverse lockout valve stuck

• | TCC PWM solenoid valve leaking

Selector Lever | Adjustment