What is the reason for transmission noise after replacing the clutch plate?
3 Answers
Transmission noise after replacing the clutch plate is caused by the weight distribution issue of the new clutch plate. When the hydraulic servo system of the clutch or the transmission computer cannot accurately control the separation and engagement of gears, noise and jerking will occur. Weight distribution issue of the new clutch plate: The basic structure of a dual-clutch transmission is actually quite similar to that of a manual transmission, as both use gear transmission. However, the difference lies in the fact that a dual-clutch transmission is equipped with two clutches, each independently connected to a set of gears, controlling odd-numbered gears and even-numbered gears respectively. If intermittent collision sounds occur when pressing or releasing the clutch pedal, it indicates axial movement of the release bearing, and the release bearing return spring should be replaced. Function of the automotive transmission: To change the transmission ratio and expand the torque and speed range of the driving wheels. Under the condition that the engine's rotation direction remains unchanged, the vehicle can move backward. Using neutral gear to interrupt power transmission allows the engine to start and shift gears, facilitating transmission shifting or power output. The transmission consists of a transmission mechanism and a control mechanism. If necessary, a power take-off can also be installed. During vehicle operation, to adapt to different working conditions, the vehicle's driving force and speed need to vary within a certain range. Since the existing engine's torque and speed variation range cannot meet this requirement, a transmission is installed.
Regarding the transmission noise after replacing the clutch disc, I personally think it starts with improper installation. Last time my car had a similar issue, the mechanic said it might be due to misaligned clutch discs or excessive force during installation causing internal gear damage, resulting in a creaking sound when the transmission operates. Another common reason is the quality of the parts themselves—some cheap ones wear out quickly and start making friction noises right after installation. Improper clearance adjustment is also to blame, such as incorrect calibration between the clutch pressure plate and flywheel, which causes uneven load on the transmission and generates noise. Worse yet, it may damage other components, like loose bearings or insufficient lubrication from transmission fluid, increasing wear risks. This noise is no small matter—once detected, it should be checked by a professional immediately. Otherwise, long-term neglect can harm the entire drivetrain or even lead to accidents. In short, replacing clutch discs is routine maintenance, but details matter. Having a reliable technician double-check can save a lot of trouble.
As a car owner, I deeply understand the transmission noise after replacing the clutch disc. At first, I thought it was a minor issue, but the rattling sound became more frequent, especially noticeable during acceleration. Looking back at the repair process, the repair shop might not have properly tested the compatibility of the parts or operated the tools roughly, causing misalignment of the internal gears in the transmission. Another possibility is that the lubricant wasn't replaced promptly after installation, leading to thin oil film and increased friction. I later learned that an uneven flywheel surface could also cause vibration noise, and neglecting this during repair could imbalance the entire system. The safety hazard is significant—once on the highway, the noise suddenly intensified, nearly causing a breakdown, but luckily, I managed to pull over. Economically, it's also not cost-effective, as a return repair costs hundreds more. I recommend test-driving more in the first few days after replacing the clutch disc and immediately troubleshooting any noise to save time, money, and ensure safety.
