What are the causes of throttle vibration during acceleration?
3 Answers
The causes of throttle vibration during acceleration are: 1. Large electrode gap in the spark plug; 2. Faulty ignition coil; 3. Loose screws on the engine underguard; 4. Excessive carbon buildup in the engine, throttle, intake tract, or valve areas; 5. Poor quality gasoline. The solutions for throttle vibration during acceleration are: 1. Adjust the spark plug electrode gap or replace the spark plug; 2. Check fuel pressure and clean the fuel injector; 3. Test cylinder pressure; 4. Clean the throttle, fuel filter, and fuel lines; 5. Service and maintain the engine; 6. Check the coolant temperature sensor; 7. Replace with suitable engine oil.
The car shakes violently when stepping on the accelerator. I experienced this situation myself last month - the car felt like it was wobbling whenever I accelerated. The usual causes are worn-out spark plugs or excessive gap size, leading to uneven ignition and engine vibration. Fuel system issues are also common, such as insufficient fuel supply from the fuel pump or clogged fuel injectors. The inspection method is simple: listen for abnormal engine noises and check if any warning lights are illuminated on the dashboard. For new car owners, it's recommended to visit a professional repair shop for diagnosis rather than attempting DIY fixes. Driving with shaking isn't just uncomfortable, it also affects steering and braking control, increasing accident risks. Regular air filter replacement and maintenance can prevent this - don't wait until it becomes dangerous to regret.
The car shakes violently when I step on the accelerator, and I've encountered this issue multiple times during long-distance driving. The main causes are damage to the driveshaft or half-shaft, where imbalance leads to body vibration. Another reason could be aging or loose engine mounts, causing engine vibrations to transfer to the accelerator pedal. You can check for cracks in the engine mounts by opening the hood yourself, but most of the time, a technician needs to inspect it with a multimeter. Ignoring this issue may damage the transmission or suspension system, leading to higher repair costs. From a safety perspective, accelerating while shaking increases the risk of fatigue driving, especially on highways. I make it a habit to inspect undercarriage components every six months to prevent such problems.
