What Causes Vehicle Body Shaking?
2 Answers
Vehicle body shaking can be attributed to the following main reasons: 1. Excessive engine carbon deposits: As the engine usage time increases, when the throttle is too dirty or the fuel injector has excessive carbon deposits, the engine may exhibit shaking. It is advisable to clean the throttle promptly during regular vehicle use. 2. Ignition system malfunction: Issues with the ignition system are also one of the causes of vehicle shaking. When there are problems with the spark plugs, high-voltage wires, or ignition coils in the ignition system, starting the car may also result in shaking. Owners can check the spark plugs to determine the cause of idle speed shaking. 3. Unstable oil pressure: When the fuel pump's supply pressure data is inaccurate, the vehicle may shake during idle driving. It is important to check the oil pressure and replace it if necessary to avoid more significant malfunctions.
Last time I experienced body vibration while driving, I initially thought it was due to uneven road surfaces, but later discovered it was a tire issue. Improper wheel alignment or failed wheel balancing can cause the wheels to rotate unevenly, especially noticeable as steering wheel vibrations at high speeds. The engine also requires attention—for instance, aging spark plugs causing misfires can make the engine shake like a massage chair. Additionally, worn engine mounts can transmit engine vibrations directly to the body, making the entire seat vibrate at red lights. I recommend first checking for any deformities in the tires and rims, then reading the fault codes to see if there's an issue with the ignition system. As a side note, prolonged neglect of vibrations may damage the suspension system, leading to more expensive repairs.
