For 1990-2009 cars

Cause | Action
--- | ---
DEFINITION: Vibration from the clutch components during disengagement or engagement. Review the Symptoms - Clutch and perform the necessary inspections.
Excessive driveline torsional activity | Review the Vibration Analysis - Driveline .
Clutch incorrectly installed | Remove the clutch and install it correctly. Refer to Clutch Assembly Replacement .
Pilot bearing worn or damaged |

1. Replace the pilot bearing. Refer to Clutch Pilot Bearing Replacement .
2. Inspect the input shaft pilot bearing journal for wear or damage.
3. Replace the input shaft if damaged or worn. Refer to Transmission Disassemble .

Transmission input splines worn or damaged |

1. Inspect the clutch disc to input splines for wear or damage.
2. Replace the input shaft if the splines are excessively worn. Refer to Transmission Disassemble .

Clutch disc facings damaged | Replace the clutch assembly. Refer to Clutch Assembly Replacement .
Flywheel housing to clutch housing excessively misaligned | Replace the faulty transmission front case. Refer to Transmission Disassemble .
Clutch out of balance | Replace the clutch assembly. Refer to Clutch Assembly Replacement .