What is the phenomenon of clutch disc slipping?
2 Answers
Clutch slipping symptoms: When starting, fully releasing the clutch pedal does not allow the car to start or makes starting difficult; during acceleration, the vehicle speed does not increase with the rise in engine RPM, and the speed remains low. Causes of clutch disc slipping: Frequent semi-engagement; incomplete release of the clutch—many beginners habitually keep their foot on the clutch pedal after releasing it, which prevents the clutch disc from pressing tightly against the flywheel and also accelerates wear on the release bearing; starting with excessive throttle—many drivers, fearing stalling during start-up or when starting on a slope, deliberately start with the throttle engaged, and prolonged operation in this manner can lead to clutch disc slipping. Solutions for clutch slipping: If the friction disc is burnt, hardened, contaminated with oil, or the driven disc friction disc is excessively worn, repair or replace as necessary; if the diaphragm spring is fatigued, cracked, or failed, replace it; if the release bearing and release sleeve movement is stuck and cannot return, lubricate or replace them; if the pressure plate or flywheel is deformed or worn, resurface or replace them; if the clutch control mechanism is improperly adjusted, resulting in insufficient pedal free play, adjust it; if the clutch master cylinder in the hydraulic clutch control mechanism is faulty, repair or replace it.
I once experienced clutch slippage. That time when climbing a steep slope, the engine RPM soared as I pressed the accelerator, but the car moved as slowly as an old ox pulling a cart, feeling extremely sluggish. The reason was either severely worn clutch plates or oil contamination on the surface, preventing proper engagement with the flywheel to transfer power. This kind of slippage commonly occurs in manual transmission vehicles, especially when you maintain partial clutch engagement for too long or frequently start from standstill. If not addressed promptly, it not only causes poor acceleration and increased fuel consumption but may also lead to overheating damage to clutch components or even affect the drivetrain. My suggestion is not to push through when encountering this issue - slow down, pull over to inspect, or go directly to a repair shop. Develop smooth starting habits during normal driving to minimize wear, and regular maintenance can also reduce risks.
