The pedal falls to the floor with very little resistance
- Low fluid level or air in hydraulic clutch release system (Chapter 6).
- Destroyed release bearing or clutch release fork (Chapter 6).
- Pressure plate diaphragm spring broken (Chapter 6).
Clutch won't disengage (inability to change gear)
- Hydraulic fluid level too high (Chapter 6).
- Jamming of the clutch disc on the splines of the driven shaft (Chapter 6).
- Clutch disc sticking to flywheel or pressure plate (Chapter 6).
- Faulty pressure plate assembly (Chapter 6).
- Worn or incorrectly assembled clutch release mechanism (Chapter 6).
Clutch slip (engine speed increases without increasing vehicle speed)
- Hydraulic fluid level too high (Chapter 6).
- Excessive wear on clutch disc linings (Chapter 6).
- Oil contamination of clutch disc linings (Chapter 6).
- Pressure plate defective or diaphragm spring weak (Chapter 6).
Intense vibration when engaging the clutch
- Oil contamination of clutch disc linings (Chapter 6).
- Excessive wear on clutch disc linings (Chapter 6).
- Faulty or deformed pressure plate or diaphragm spring (Chapter 6).
- Worn or loose bolts securing the engine-transmission unit.
- Worn splines of the clutch disc hub or transmission input shaft (Chapter 6).