What Causes the Throttle Pedal to Vibrate During Acceleration?

[DiEmiliano]

Vibration felt in the throttle pedal during acceleration may be caused by a dirty throttle body or excessive carbon buildup in the fuel injectors. Over time, a dirty throttle body can prevent it from closing properly, leading to high engine idle speed. Alternatively, excessive carbon deposits in the engine can cause throttle vibration, especially noticeable when starting the vehicle. In severe cases of carbon buildup, the car may even fail to start. Here are some solutions for throttle pedal vibration during acceleration: 1. Clean the fuel system: Start by cleaning the throttle body and checking for blockages. Inspect the fuel injectors for excessive carbon buildup, which can cause unstable engine operation. 2. Check the engine mounts: The rubber mounts act as vibration dampers in the engine. Ensure they are in good condition. 3. Clean and replace transmission fluid: Regular maintenance, including changing transmission fluid, is essential. Delayed fluid changes can lead to rough transmission operation. 4. Check wheel alignment: Inspect for any impacts on the wheels or tires that may have caused deformation or abnormal tire pressure readings.