GM Service Manual Online
For 1990-2009 cars only

Clutch Slipping LHD

Cause

Action

DEFINITION: The clutch does not engage completely after the pedal is released, after shifting gears, or the clutch slips during maximum engine loads, such as climbing hills or high vehicle speeds. Clutch slipping is identified by increase in engine RPM without increase in vehicle speed.

Review the Symptoms - Clutch.

The clutch pedal return spring is broken or missing

Replace the clutch pedal return spring, if equipped. Refer to Clutch Pedal Replacement.

Clutch master cylinder binding or seized

  1. Inspect the clutch master cylinder for the piston being able to move freely and full range of travel.
  2. Replace the clutch master cylinder as required. Refer to Clutch Master Cylinder Replacement.

Clutch actuator concentric cylinder binding or seized

  1. Inspect the clutch actuator piston for moving freely.
  2. Replace the clutch concentric actuator cylinder if the piston is binding. Refer to Clutch Concentric Actuator Cylinder Replacement.

Grease or oil contamination of the clutch driven plate

  1. Repair the source of the oil leak.
  2. Repair the source of the grease leak.
  3. Clean the contamination from the clutch components.
  4. If contaminates cannot be removed, replace the clutch assembly. Refer to Clutch Concentric Actuator Cylinder Replacement.

Worn or damaged flywheel

Replace the engine flywheel. Refer to Engine Flywheel Replacement.

Worn clutch driven plate facing

Replace the clutch assembly. Refer to Clutch Concentric Actuator Cylinder Replacement.

Burnt or glazed clutch driven plate facing

Replace the clutch assembly. Refer to Clutch Concentric Actuator Cylinder Replacement.

Transmission input shaft splines worn

Replace the transmission input shaft. Refer to Transmission Disassemble.