What are the causes of engine idle vibration?
1 Answers
Engine idle vibration is mainly caused by: 1. Partial factors leading to power imbalance in various cylinders, causing engine impact and vibration; 2. Air conditioning systems, automatic transmissions, etc., which increase the engine's idle load; 3. Blocked three-way catalytic converters, imbalanced rotating components such as crankshafts and flywheels. Other causes of vibration include ignition system failures, intake system failures, faults in the air flow meter or intake pressure sensor, excessive carbon buildup in the throttle or intake passages or clogged air filter elements, leaks in the intake piping or EGR valve, idle control system failures, mechanical structural failures, fuel system failures, injector faults, fuel supply pressure issues, and control system failures.