Car shaking when idle: what it means, how urgent it is, and what to check next
If your car shakes while idling, the engine is usually not running as smoothly as it should. In many cases the problem is caused by an engine misfire, an air/fuel imbalance, or a mounting issue that lets normal engine vibration be felt more strongly. If the shaking is mild and the car drives normally, it may be possible to continue only for a short, cautious trip to a repair shop. If the idle is rough enough that the engine stumbles, the check engine light is flashing, or the car shakes badly in
Sep 06, 2026
10 min read
