Sonata 8 Idle Jitter Maintenance Case?

Here is the reason why Sonata 8 vibrates at idle speed: 1. Dirty throttle: The throttle is too dirty or damaged, which affects idle vibration. You can clean the throttle first. If the fault still exists, the throttle assembly needs to be replaced. 2. The spark plug does not work: the spark plug does not work, which affects the idle vibration of the cylinder. You can check whether the spark plug and ignition module are faulty. 3. Rubber parts aging and cracking: the rubber parts inside the engine and transmission bracket aging and cracking. Failure to absorb the vibration when the engine is working will lead to idle vibration failure.