What Causes Severe Leg Trembling When Pressing the Clutch?
2 Answers
Psychological tension, prolonged practice time, and incorrect driving posture. Below is an introduction to the precautions and working principles of the clutch: Precautions for the clutch: When pressing the clutch, it is important to use the heel as a support point. Place the front part of the foot on the clutch pedal and use the ankle and knee to press or step on it. This allows the driver to feel the semi-engaged state of the car. Working principle of the clutch: The torque generated by the engine is transmitted to the driven plate through the friction between the flywheel, pressure plate, and the contact surface of the driven plate. When the driver presses the clutch pedal, the mechanism causes the diaphragm spring's large end to push the pressure plate backward, separating the driven part from the driving part.
I usually drive a manual transmission car, and it's quite common for my leg to shake badly when pressing the clutch, often caused by the clutch being too heavy. It might be due to the vehicle's aging clutch system needing maintenance, such as insufficient clutch fluid or worn pressure plates increasing pedal resistance. This issue tends to appear as the vehicle mileage increases. During maintenance, check for leaks in the clutch hydraulic system and the master/slave cylinders. Another factor is incorrect driving posture—if the seat is too far back, the leg stretches too straight. Adjusting the seat closer to the steering wheel can reduce leg pressure. Prolonged driving leading to muscle fatigue can also cause shaking, so it's advisable to take breaks and stretch leg muscles during long drives. Safety-wise, this shouldn't be ignored—losing control due to unstable clutch pressing could lead to accidents. Regular vehicle maintenance and paying attention to physical condition can help prevent this.
