What Causes Vehicle Body Shaking?

1 Answers
VanCarson
07/29/25 12:48pm
Vehicle shaking can occur during startup, idle, and high-speed driving. Shaking during startup is mainly due to insufficient fuel combustion, resulting in inadequate power. Low ignition energy means that during startup, especially when fuel and lubricant temperatures are low, more throttle is needed to meet power demands. Over time, the spark plug gap gradually increases, leading to reduced ignition energy and poor fuel atomization, which causes the vehicle body to shake. Here are additional details: Points to note: Idle shaking should not be ignored either. Causes of idle shaking include severe engine carbon buildup, issues with the ignition system, unstable oil pressure, and aging engine components. If the vehicle shakes at idle, it is recommended that the owner first clean the engine, replace the spark plugs, and check the fuel supply pressure.
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