The body shakes when driving，This is a problem that many people will encounter；Especially for cars with a long service life，This situation is more likely to occur。

actually，The vibration of the car body does not occur for no reason，It is a signal，I’m here to tell the car owner，The car needs to be inspected。seabet my

1. The body shakes when idling

If the car is idling，Body shaking，There may be problems in the following places。

More carbon deposits in the engine，The throttle valve is too dirty or the fuel injector has too much carbon deposit，Is the most likely cause of car shaking。When starting the car，The fuel on the carbon deposit will be sucked into the cylinder by the engine and burned，Because the amount of combustible mixed gas in the engine is sometimes high and sometimes low，So the body will vibrate during cold start。Usually as long as the throttle valve and other oil circuits are cleaned on time,Then this problem will not occur.

Ignition system failure: This is also an important reason for vehicle body vibration when idling。if spark plug、High voltage wire、If there is a problem with the ignition coil，The body of the car will shake when you start it。At this time you can check whether there is too much carbon deposit on the spark plug，You can also replace the spark plug with a new one if necessary。

Instable oil pressure causes vibration.If the oil pump supply pressure is abnormal, the intake pressure sensor value is inaccurate，That will also cause jitter。You can check the oil pressure at this time，If it needs to be replaced，Replace it in time。

2. Vibration during driving

Tire problem

1. The wheel rim is out of round。Usually if the tire is hit hard，It will cause the wheel rim to be out of round。Especially some flatter tires are more likely to have this problem。If the rim is out of round，It is basically impossible to return to the original state，For your own safety，It is better to change the wheel hub again.

2. Tire imbalance.Some car owners are replacing new tires，I don’t have the habit of balancing tires，So when the car is running at high speed，The steering wheel will tremble。Usually onlyTo goJust do a tire dynamic balancing.

3. Tire deformation.The area where you touch the tire tread，If you feel that the tire tread is jagged，Or a certain tire has a very prominent bulge，The tire is deformed。General tires are punctured by sharp objects，Abnormal noise and jitter may also occur。It’s time to change the tires!

4. The ball head of the steering gear tie rod is excessively worn.The steering gear tie rod ball head is movable，So it is inevitable that there will be wear and tear；But if it is worn too much，When driving at high speed，The steering will be inaccurate，And the tires will vibrate。At this time, go to the repair shop to get it repaired.

5. The fixed rubber bushing of the steering gear is worn.Usually this kind of problem will not happen，But just in case，It’s better to check。This kind of problem is easy to find，As long as you observe a little bit it will be fine。If the fixed rubber bushing of the steering gear is worn，When turning the steering wheel，The steering wheel may vibrate。

3. Transmission shaft deformation and vibration

If the vehicle collides or scratches against a hard material,Such as curbs, stones, etc., the drive shaft screw may be loose or even fall off.If there is a problem with the drive shaft，When the car is accelerating，The shaking feeling will be more obvious。

How to perform major car maintenance, minor maintenance, and auto repair fault diagnosis