What Causes Body Vibration When Accelerating?

[MiguelLee]

Fuel system issues, electrical circuit problems, mechanical reasons. Below are the reasons for vehicle vibration when accelerating hard: 1. Fuel system issues: Generally caused by fuel line blockage, leading to poor fuel supply, manifested as engine vibration, unstable idle, or stalling while driving. Additionally, fuel pump failure can also cause engine vibration. 2. Electrical circuit problems: Check if the timing is accurate. Generally, abnormal ignition is a timing issue. Inspect whether the spark plugs are aged, if the gaps are uniform, and if the gaps have changed. Also, malfunctioning of the distributor can cause engine vibration. 3. Mechanical reasons: Check the engine's operating condition for any abnormal sounds, such as valve noise. Inspect the belt's working condition to see if it's loose.