After cleaning the engine carbon deposit, cleaning the throttle, replacing the oil pad and spark plug, etc. Still found that the body shakes when idling. You can go to the 4S shop to check the fuel supply pressure and intake pressure sensor. If the oil supply pressure of the oil pump is abnormal, or the intake pressure sensor has an incorrect value or works poorly, it will cause the body to shake. The solution is to check the oil pressure and replace the parts if necessary.
2, engine parts or aging, such as engine foot aging may make the body shake.
In fact, the silver engine foot is the shock absorption system of the engine. The engine feet are responsible for absorbing the slight vibration of the engine during operation. If there is something wrong with the engine foot, these vibrations will be transmitted to the steering wheel and cab.
3. The engine throttle is too dirty or the fuel injector has too much carbon, which leads to jitter.
When there is too much carbon deposit, the gasoline sprayed by the fuel injection head will be absorbed by a large amount of carbon deposit during cold start, which leads to too thin mixture during cold start and difficult start. After landing, the gasoline adsorbed on the carbon deposit will be sucked into the cylinder by the vacuum suction of the engine for combustion, which will make the mixture rich, and the combustible mixture of the engine will be diluted and concentrated, resulting in idling jitter. The solution is to clean the oil circuit and check whether there is carbon deposit in the idle motor, which should be cleaned.
Extended data:
Causes of steering wheel jitter:
1. When driving at high speed, the steering wheel shakes.
This situation may be caused by the vehicle transmission system, so it is necessary to check whether the positioning angle of the front wheel meets the requirements, and adjust it if it is not aligned.
2. The steering wheel shakes badly when driving in the direction.
This is because the power-assisted belt is too loose or too tight, mainly for mechanical and hydraulic power-assisted vehicles. Just adjust the belt tightness or replace it.
References:
People's Daily Online-If there is a hidden danger of body shaking, how should the owner judge and solve the fault?
References:
People's network-steering wheel jitter is no small matter. I didn't expect so many reasons.