What Causes Dual-Clutch Transmission to Shudder During Start-Up?
1 Answers
The reasons for dual-clutch transmission shudder during start-up are as follows: 1. Clutch shudder: Let the engine idle, engage a low gear, slowly release the clutch pedal and increase the throttle to start. If the vehicle body shakes at this time, it indicates clutch shudder. 2. Uneven distribution of positive pressure between driven discs: The pressing force of the clutch pressure springs in a frequently engaged clutch is uneven, the adjustment of each release lever is inconsistent, and/or the fingers of the diaphragm spring are not level, leading to asynchronous engagement timing and uneven force distribution on the pressure plate. 3. Weakened damping spring force: The damping force of the clutch torsional damping spring weakens, the pressing force of the clutch pressure spring weakens, or cracks appear in the diaphragm spring, all of which can cause clutch shudder during engagement. The strategy to address this is to replace the springs.