What are the symptoms of a bad clutch disc?

[VonCharles]

The symptoms of a bad clutch disc are as follows: 1. The clutch engagement point becomes higher. When starting the vehicle, you need to release the clutch pedal to 2 cm instead of the original 1 cm before the car moves, which is caused by the thinning of the clutch disc; 2. Noticeable decrease in vehicle power. With no abnormalities in the engine, whether starting or climbing a slope, the car feels sluggish. Even at high engine RPMs, there's insufficient power, indicating clutch slippage; 3. Metallic grinding noises when depressing or releasing the clutch pedal, which results from severe wear of the clutch disc; 4. Uneven feeling when releasing the clutch during start-up, with noticeable jerking movements of the car forward and backward. There's also stiffness when engaging or disengaging the clutch, indicating the need for clutch disc replacement. The automotive clutch disc serves as the medium transmitting engine power to the transmission. Similar to brake pads, the friction material of clutch discs mainly uses asbestos-based compounds that possess certain high-temperature resistance properties.