Clutch Vibration

WARNING: This page is about a different variant/trim than selected.

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 (M13 Transmission) , or Clutch Assembly Replacement (MJK, MH3, MM6) .
Pilot bearing worn or damaged	Replace the pilot bearing. Refer to Clutch Pilot Bearing Replacement (LGX Engine) , or Clutch Pilot Bearing Replacement (LT1, LT4 Engines) . Inspect the input shaft pilot bearing journal for wear or damage. Replace the input shaft if it is damaged or worn. Refer to Transmission Disassemble (M13 - LGX with Y4Q) , or Transmission Disassemble (MJK, MH3, or MM6) , or Transmission Disassemble (M13 - LGX without Y4Q, LTG) .
Transmission input splines worn or damaged	Inspect the clutch disc to input splines for wear or damage. Replace the input shaft if the splines are excessively worn. Refer to Transmission Disassemble (M13 - LGX with Y4Q) , or Transmission Disassemble (MJK, MH3, or MM6) , or Transmission Disassemble (M13 - LGX without Y4Q, LTG) .
Clutch disc facings damaged	Replace the clutch assembly. Refer to Clutch Assembly Replacement (M13 Transmission) , or Clutch Assembly Replacement (MJK, MH3, MM6) .
Flywheel housing to clutch housing excessively misaligned	Replace the faulty clutch housing or transmission front case. Refer to Transmission Disassemble (M13 - LGX with Y4Q) , or Transmission Disassemble (MJK, MH3, or MM6) , or Transmission Disassemble (M13 - LGX without Y4Q, LTG) .
Clutch out of balance	Replace the clutch assembly. Refer to Clutch Assembly Replacement (M13 Transmission) , or Clutch Assembly Replacement (MJK, MH3, MM6) .