What Causes the Vibration Sensation When Idling in the Car?
2 Answers
Reasons for feeling vibration when idling in the car: 1. Aging engine mounts: The engine and the car body are connected through engine mounts. As elastic components, engine mounts can age over time, allowing engine vibrations to transmit into the cabin. 2. Failed spark plugs: Spark plugs are components that ignite the gas in the cylinders. If the spark plugs fail, the engine will misfire, leading to uneven power output and resulting in vibrations. 3. Clogged fuel injectors: If the vehicle's fuel injectors are clogged, the atomization of fuel will deteriorate, preventing complete combustion of fuel in the engine.
My car used to shake a lot at idle too, so annoying! The main reason is usually too much carbon buildup in the engine, causing uneven combustion and vibration. If the spark plugs are worn out, unstable ignition can also cause engine compartment shaking. Additionally, a dirty throttle body leads to uneven air intake, resulting in unstable idle. Also, aged or worn engine mount rubber pads reduce vibration damping, allowing shakes to transfer into the cabin. I experienced this once - cleaning the carbon deposits and replacing the spark plugs made a big difference. Regular maintenance is crucial; for example, checking spark plugs and cleaning the throttle body every 10,000 km can prevent such issues. Don't underestimate minor shaking - accumulated over time it affects engine lifespan. Addressing it early saves hassle and money.
