BYD Song Jia struck out the steering wheel.

For BYD models, it is normal for the steering wheel to shake slightly when the engine is idling. You can compare the same paragraph. If there is no obvious gap, the vehicle is not faulty. If there are obvious differences after comparison, it means that the engine is unstable at idle speed, and the jitter will disappear after solving the problem of unstable idle speed. When the air conditioning system is started, the engine load will increase, and the small-displacement vehicle will experience slight jitter and weak acceleration. This phenomenon is not a fault, it is mainly related to the engine displacement, so it can be used safely.

The vibration of automobile steering wheel is caused by dirty throttle or excessive carbon deposit in fuel injector, failure of spark plug, high-voltage line and ignition coil, insufficient oil supply pressure of oil pump, incorrect value of intake pressure sensor, aging of engine parts and so on.

If there is a terrible thump in the direction of hitting, it may be caused by the excessive gap between the steering gear and the gear, and the steering gear needs to be replaced.