For 1990-2009 cars

Cause | Correction
--- | ---
DEFINITION: Inspect for proper gear oil levels prior to performing system diagnosis.
Loose propeller shaft mounting bolts | Tighten the bolts as required
Worn propeller shaft constant velocity joint |

• | Replace the propeller shaft assembly.

• | A worn propeller shaft constant velocity joint may create a clicking, grinding, or snapping type noise.

Worn axle shaft constant velocity joints |

• | Replace/repair the axle shaft as required.

• | A worn axle shaft constant velocity joint may create a clicking, grinding, or snapping type of noise.

Worn or damaged differential housing support bushings side |

• | Replace the bushings as required.

• | A worn bushing may create a clunk type of noise during acceleration or deceleration.

Worn or damaged differential housing support bushings rear |

• | Replace the bushings as required.

• | A worn bushing may create a clunk type of noise during acceleration or deceleration.

• | Check the bushing orientation, the tuning slots must be in proper position.

Loose rear mounting bracket bolts | Tighten the bracket bolts as required.
Loose or damaged prop guard |

• | Repair or replace as required.

• | A loose dust shield may contact the propeller shaft assembly and create a scraping or grinding type of noise.

Gear set whine noise within clutch coupling assembly |

• | A whine type of noise will increase or decrease relative to the vehicle speed approximately 80-90 km/h (50-56 mph).

• | Check for the proper fluid level

• | Repair or replace the unit as required.

Shutter or moan at slow speeds or slow time |

1. A shutter or moan type of noise in slow sharp turns.
2. The RDM could be contaminated with the wrong fluid type/water.
3. Replace the fluid; fill as required and retest under conditions.