For 1990-2009 cars

#### Slips in Reverse or No Reverse

Checks | Cause
--- | ---
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.

Automatic Transmission Fluid Level | Low fluid level
Transmission Main Line Pressure | Low transmission main line pressure
Manual Linkage | Misadjusted
Oil Filter Assembly |

• | The oil filter assembly (100) is missing, plugged, or damaged.

• | The oil filter seal assembly (101) is missing or damaged.

Reverse Band Servo Assembly |

• | A servo piston oil seal ring (43) is missing or is damaged.

• | A servo piston (44) is damaged or is stuck in the case bore.

• | The servo piston cushion springs (45, 47) or the retainer (46) is missing or damaged.

• | The servo piston pin (48) is not engaged to the reverse band assembly (615).

• | The reverse band assembly (615) is worn or burned.

• | The reverse band assembly (615) is disengaged from the anchor pin (117B) band.

• | The anchor pin (117B) is loose or missing.

Torque Converter Assembly | The torque converter assembly (1) stator clutch is not holding.
Drive Link Assembly |

• | The drive link assembly (507) is broken.

• | The drive/driven sprockets (516/506) are damaged.

Input Clutch Assembly |

• | The input clutch sprag assembly (722) is damaged or misassembled.

• | The input clutch housing oil seal rings (628) are missing or are damaged.

• | The input clutch housing ball check valve assembly (633) is missing or is damaged.

• | The input clutch piston inner/outer seals (634/635) are missing or are damaged.

• | The input clutch piston (636) is damaged.

• | The input clutch plates (654-658) are worn.

Reverse Reaction Drum | The reverse reaction drum (669) splines are damaged.
Input and Reaction Carrier Assemblies | The input carrier assembly (672) or the reaction carrier assembly (675) components are damaged.
Differential Carrier Assembly |

• | The park pawl assembly (694) is broken or damaged.

• | The sun gear shaft (689), the internal gear assembly (693), or the carrier assembly (700) components are damaged.