What Causes Shuddering When Starting a Manual Transmission Car?

1 Answers
LaLeo
07/30/25 12:39am
The reasons for shuddering when starting a manual transmission car are: 1. Poor clutch control; 2. Malfunction in the clutch or transmission; 3. Insufficient engine power; 4. Loose connection between the transmission and chassis; 5. Uneven engagement between the clutch pressure plate and clutch friction disc; 6. Loose engine mounting or misalignment between the transmission's first shaft and the engine crankshaft centerline. The manual transmission primarily transmits power through the clutch, with the clutch pressure plate being mainly responsible for kinetic energy transfer. Long-term semi-engagement or abnormal engine load conditions will accelerate wear on the clutch pressure plate, reducing its service life. When the pressure plate wears to a certain extent, power engagement becomes less smooth, naturally causing the car to shudder, and the engine speed will also become unstable.
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