What Causes Slight Vibration During Car Idling?

[DelPeter]

The slight vibration during car idling may be caused by aging engine components, faults in the ignition system, or severe carbon buildup on the engine. Below are the relevant explanations: Engine mount issues: The engine mount is the shock absorption system of the engine, primarily responsible for absorbing minor vibrations generated during engine operation. If the engine mount is faulty, these vibrations will be transmitted to the steering wheel and the cabin. Therefore, when the engine mount ages, it can cause vibrations during idle. Ignition system failure: When the ignition system malfunctions, spark plug misfiring can lead to idle vibrations. It is advisable to promptly visit a 4S shop or repair facility for maintenance. If not addressed in time, it may result in increased fuel consumption, difficulty in ignition, and reduced driving power. Excessive carbon buildup in fuel injectors: Too much carbon buildup in fuel injectors can also cause idle vibrations. In such cases, the fuel system needs to be cleaned. It is recommended to use higher-quality fuel or add fuel system cleaner during regular refueling.