Causes of Engine Vibration?
2 Answers
Causes of engine vibration include the following points. 1. Insufficient fuel supply due to clogged or stuck fuel injectors, resulting in power loss. 2. Insufficient ignition energy caused by aging spark plugs with widened electrode gaps. 3. Excessive carbon buildup in the engine intake manifold and valves. Below are extended solutions for engine vibration. 1. For clogged or stuck fuel injectors, use higher-quality fuel. 2. For aging spark plugs, replace or clean them. 3. For carbon buildup in the intake manifold and valves, disassemble and clean the throttle idle valve, and lubricate the idle valve bearings.
As an experienced auto repair technician, I believe engine shaking is primarily related to several core components. Worn spark plugs are the most common culprit - when electrodes deteriorate, unstable ignition directly causes engine vibration. Secondly, faulty ignition coils or high-voltage wires that disrupt current transmission can also induce shaking. The fuel system shouldn't be overlooked either; clogged injectors or insufficient fuel pump supply can create air-fuel mixture imbalance and increase vibration. Air-fuel ratio issues often stem from dirty or failed mass airflow sensors affecting intake volume. Additionally, loose engine mounts or worn rubber bushings allow the entire engine to shake during operation. I recommend monitoring tachometer fluctuations at idle - if abnormal vibrations are detected, promptly inspect these areas, preferably through professional diagnostics to prevent minor issues from escalating. Regular maintenance like spark plug replacement and throttle body cleaning effectively prevents carbon buildup-related shaking problems.
