Pedal fails - no pressure or very little resistance
- Low Hydraulic Fluid/Air in Hydraulic System
- Damaged release bearing or clutch release fork
- Damaged diaphragm spring in clutch pressure plate
Clutch won't disengage (unable to change gear)
- Hydraulic fluid level too high
- Clutch disc stuck in gear input shaft slots
- Clutch disc stuck on flywheel or pressure plate
- Defective pressure plate assembly
- Worn or improperly assembled clutch release mechanism
Clutch slip (increasing engine speed without increasing vehicle speed)
- Hydraulic fluid level too high
- Clutch disc gaskets excessively worn
- Clutch disc gaskets contaminated with oil or grease
- Defective pressure plate or weak diaphragm spring
Intense vibration when engaging the clutch
- Clutch disc gaskets contaminated with oil or grease
- Clutch disc gaskets excessively worn
- Defective or deformed pressure plate or diaphragm spring
- Worn or loose engine or transmission mounts
- Worn clutch disc hub or transmission input shaft grooves
Noise when depressing or releasing the clutch pedal
- Worn release bearing
- Worn or not lubricated clutch pedal bushings
- The pressure plate assembly is defective
- Damaged pressure plate diaphragm spring
- Damaged clutch disc suspension springs
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