Troubleshooting Clutch Problems (Opel Vectra A)

The pedal fails - there is no resistance or very little resistance

• The clutch cable broke (Section 6)
• Incorrect clutch cable adjustment (Section 6)
• The release bearing or clutch release fork is damaged (Section 6)
• The diaphragm spring in the clutch pressure plate is damaged (Section 6)

The clutch does not disengage (unable to change gear)

• Incorrect clutch cable adjustment (Section 6)
• The friction disc is jammed in the grooves of the transmission input shaft (Section 6)
• The clutch friction disc has become attached to the flywheel or pressure plate (Section 6)
• The pressure plate assembly is faulty (Section 6)
• The clutch release mechanism is worn out or incorrectly assembled (Section 6)

[The article was published on the website: opelbook]

Clutch slippage (increasing engine speed does not increase vehicle speed)

• Incorrect clutch cable adjustment (Section 6)
• Clutch disc linings are excessively worn (Section 6)
• Clutch disc linings are contaminated with oil or lubricant (Section 6)
• Defective pressure plate or weak diaphragm spring (Section 6)

Intense vibration when engaging the clutch

• Clutch disc linings are contaminated with oil or lubricant (Section 6)
• Clutch disc linings are excessively worn (Section 6)
• The clutch cable is worn out or jammed (Section 6)
• Defective or warped pressure plate or diaphragm spring (Section 6)
• Worn or loose engine or transmission mounts (Section 2A or 2B)
• The clutch disc hub or gearbox input shaft grooves are worn out (Section 6)

Unusual sound when pressing or releasing the clutch pedal

• The release bearing is worn out (Section 6)
• Clutch pedal bushings are worn or not lubricated (Section 6)
• The pressure plate assembly is defective (Section 6)
• The diaphragm spring of the pressure plate is damaged (Section 6)
• Damaged clutch disc damper springs (Section 6)