What Causes Engine Vibration at Idle Speed?

1 Answers
LaArthur
07/30/25 6:21am
The reasons for engine vibration at idle speed are: 1. Dirty throttle body; 2. Excessive carbon deposits in the engine; 3. Faulty spark plugs or ignition coils; 4. Unstable fuel pressure; 5. Worn engine mounts. The solutions for engine vibration at idle speed are: 1. Clean the throttle body and remove engine carbon deposits promptly; 2. Inspect spark plugs, high-voltage wires, and ignition coils; 3. Check fuel pressure and replace damaged components if necessary. The troubleshooting methods for idle vibration issues are: 1. Inspection of idle control motor; 2. Inspection of throttle position sensor; 3. Inspection of fuel injectors and crankshaft position sensor.
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