What Causes Car Body Shaking?
2 Answers
Here are the reasons that cause car body shaking and the solutions: 1. Unstable oil pressure: Abnormal fuel pump supply pressure or incorrect readings and poor performance of the intake pressure sensor can cause body shaking. Solution: Check the oil pressure and replace components if necessary. 2. Aging engine components: Car shaking can also be related to worn engine mounts. Engine mounts are essentially the shock absorption system of the engine, responsible for absorbing minor vibrations during operation. If the engine mounts are faulty, these vibrations can transfer to the steering wheel and the cabin, causing shaking during idle. Solution: Replace the components. 3. Severe engine carbon buildup: Dirty throttle body or excessive carbon deposits on the fuel injectors. When there is too much carbon buildup inside the engine, the gasoline sprayed by the cold start injector can be largely absorbed by the carbon deposits, leading to an overly lean air-fuel mixture during cold starts and making it difficult to start. Solution: Clean the fuel system and check if the idle control valve has carbon deposits that need cleaning.
Body shaking is usually caused by unbalanced or out-of-round tires. This issue is particularly noticeable during high-speed driving, as damaged tire surfaces or deformed wheel hubs can lead to vehicle wobbling. Another reason could be problems with the braking system, such as overheated and warped brake discs, which cause more pronounced shaking when braking. Loose suspension components or aged shock absorbers that fail to provide cushioning can also contribute. If the engine mounts are broken, engine vibrations will transmit throughout the entire body. A bent or worn driveshaft may also induce shaking at specific speeds. Regularly check tire pressure and wear conditions. If shaking occurs, immediately reduce speed and drive cautiously, then visit a repair shop as soon as possible for a comprehensive inspection to ensure timely resolution and prevent further damage to components.
