Clutch Troubleshooting

Clutch pedal goes to the floor with little or no resistance
1 Hydraulic fluid level in the reservoir is low (Refer to Chapter Adjustments and Routine Maintenance).
2 Clutch master or slave cylinder or hydraulic line is faulty (Refer to Chapter Clutch and Driveshafts).
3 Release bearing or clutch release fork is broken (Refer to Chapter Clutch and Driveshafts).
4 Clutch pressure plate diaphragm spring is broken (Refer to Chapter Clutch and Driveshafts).

Clutch does not disengage (gear cannot be selected)
1 Manual transmission is faulty (Refer to Chapter Manual Transmission).
2 Clutch disc is faulty (Refer to Chapter Clutch and Driveshafts).
3 Release lever is incorrectly assembled with the release bearing (Refer to Chapter Clutch and Driveshafts).
4 Clutch pressure plate is faulty (Refer to Chapter Clutch and Driveshafts).
5 Clutch cover bolts to flywheel are loose (Refer to Chapter Clutch and Driveshafts).

Clutch slips (engine speed increases without an increase in vehicle speed)
1 Clutch disc is worn (Refer to Chapter Clutch and Driveshafts).
2 Clutch disc friction linings are contaminated with oil leaking from the crankshaft rear oil seal (Refer to Chapter Clutch and Driveshafts).
3 New clutch disc is not yet bedded in (a minimum of 30 ÷ 40 launches is required to fully bed in a new disc).
4 Clutch cover/flywheel assembly is distorted (Refer to Chapter Clutch and Driveshafts).
5 Diaphragm spring has weakened (Refer to Chapter Clutch and Driveshafts).
6 Clutch disc is overheated (park the vehicle and allow the disc to cool).

Vibration when engaging the clutch
1 Clutch disc friction linings are contaminated with oil, burnt, or glazed (Refer to Chapter Clutch and Driveshafts).
2 Engine mounts are worn or their attachment is loose (Refer to Chapters Engine and Manual Transmission).
3 Transmission input shaft splines or clutch disc hub splines are worn (Refer to Chapter Clutch and Driveshafts).
4 Clutch cover/flywheel assembly is distorted (Refer to Chapter Clutch and Driveshafts).

Abnormal noise when depressing or releasing the clutch pedal
1 Clutch release lever or clutch release bearing is worn (Refer to Chapter Clutch and Driveshafts).
2 Shift fork rod is incorrectly installed (Refer to Chapter Clutch and Driveshafts).
3 Clutch pedal pivot bushings are worn or dry (Refer to Chapter Clutch and Driveshafts).
4 Clutch cover assembly is faulty (Refer to Chapter Clutch and Driveshafts).
5 Clutch pressure plate diaphragm spring is broken (Refer to Chapter Clutch and Driveshafts).
6 Clutch disc torsion springs are broken (Refer to Chapter Engine Management).
7 Engine idle speed is too low (Refer to Chapter Adjustments and Routine Maintenance).

Clutch pedal does not return to its original position after release
1 Clutch master or slave cylinder is faulty (Refer to Chapter Clutch and Driveshafts).
2 Clutch release fork or release bearing is broken (Refer to Chapter Clutch and Driveshafts).

Excessive force required to depress the clutch pedal
1 Piston in the master or slave cylinder is seized (Refer to Chapter Clutch and Driveshafts).
2 Clutch cover assembly is faulty (Refer to Chapter Clutch and Driveshafts).