Why Is Your Car Vibrating While Idling? 8 Common Causes Every Driver Should Know
Why Is Your Car Vibrating While Idling? 8 Common Causes Every Driver Should Know Your car should idle smoothly and quietly. If the vehicle starts shaking while stopped at a traffic light or when parked with the engine running, it's usually a sign that something needs attention. While some causes are minor, others can lead to poor fuel economy, reduced driving comfort, and more expensive repairs if ignored. Let's look at the most common causes. 1. Worn Engine Mountings Engine mountings absorb engine vibration and prevent excessive movement. Over time, the rubber inside the mounting can: Crack Collapse Separate Common symptoms: Vibration while idling Excessive engine movement Clunking during gear changes 2. Dirty Throttle Body Carbon deposits can build up inside the throttle body and affect airflow. This may cause: Unstable idle speed Engine vibration Poor throttle response Regular cleaning can help restore smooth engine operation. 3. Worn Spark Plugs Spark plugs play a crucial ...