For 1990-2009 cars

Condition | Action
--- | ---
DEFINITION: Vibration is felt from the transmission while driving.
Fluid level low and/or burnt |

• | Perform Transmission Fluid Check .

• | If low inspect for fluid leak, repair as necessary.

• | Inspect transmission oil cooler system for restricted or kinked lines.

• | Flush system. Refer to Transmission Fluid Cooler Flushing and Flow Test .

Fluid is contaminated with water or engine coolant | If contaminated with engine coolant replace transmission.
Unit filled with wrong type of fluid | Drain fluid and fill with proper type of fluid.
Engine or transmission mounts |

• | Inspect the engine mounts and the transmission mounts for wear or loose mounting fasteners.

• | Replace any faulty engine or transmission mounts or loose fasteners.

Interference with drivetrain or body |

• | Inspect components surrounding the transmission assembly and engine for improper contact.

• | Repair or adjust as necessary.

Drive shafts |

• | Inspect the drive shafts for worn components.

• | Replace the drive shaft if worn.

Exhaust system |

• | Inspect the exhaust system for loose or missing hangers.

• | Inspect the exhaust system for contacting body or frame components.

• | Adjust or repair the exhaust system.

Tire balance |

• | Inspect for balance of the tires.

• | Inspect for uneven wear of the tires.

• | Re-balance the tires or replace as necessary.

Flexplate |

• | Inspect the flexplate for cracks or loose mounting bolts.

• | Replace the flexplate if cracked.

• | Inspect the flexplate for runout or being bent.

• | Replace the flexplate if runout is not correct.

Engine malfunction |

• | Ensure engine is operating properly.

• | Repair engine to operate properly.

Internal transmission part failure |

• | Disassemble the transmission and inspect the following:

- | Worn bearings

- | Bent shafts

- | Planetary assemblies for wear

• | Replace transmission if any parts are faulty.