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What Causes Body Shaking After High-Speed Driving?

1 Answers

SanGrant

07/30/25 9:30am

Vehicle shaking can be caused by throttle issues, fuel problems, or spark plug problems. Below are the specific reasons for vehicle shaking: Throttle Issues: The main cause of a dirty throttle is carbon buildup at the connection between the throttle valve plate shaft and the throttle body, leading to inaccurate throttle opening and resulting in idle shaking. The throttle can be cleaned. If shaking persists after cleaning, the throttle assembly may be damaged and require replacement. Fuel Problems: Poor-quality gasoline can result in poor fuel injector atomization, leading to incomplete combustion of the air-fuel mixture in the cylinder and causing idle shaking. It is recommended to use high-grade gasoline to clean the fuel system after finishing the current tank. Spark Plug Problems: If the spark plug fails to ignite, causing one or more cylinders to stop working, this can also lead to idle shaking. Check for cracks in the ceramic part of the spark plug and ensure the ignition module is functioning properly.

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