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How to deal with abnormal noise of vehicles?

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[Abstract]:
The problem of abnormal noise in cars is that it is difficult for ordinary car owners to distinguish which are abnormal noises and which are reasonable noises.

The problem of abnormal noise in cars is that it is difficult for ordinary car owners to distinguish which are abnormal noises and which are reasonable noises. Today, Xiaobian and everyone come together to see the difference between the abnormal sound of the body and the abnormal sound of the engine.

1, the body has abnormal sound

When driving on the accelerator pedal or braking, there is always some abnormal noise in a certain part of the car body, the sound is not big, and it does not affect the normal driving, but there is always a little worry about what went wrong. This problem usually occurs because the rigidity of the vehicle body is not enough, causing the vehicle to deform during driving, the door and the frame rubbing or shaking, or some places are desoldered to generate friction between the steel plates. There are also some cars with high wind noise. To a certain extent, this is related to the shape of the car. There are also some car body parts that are not well fixed and may cause abnormal noise. Generally, the screw can be solved.

 

 

2, the engine has abnormal sound

There is a greater chance of abnormal noise in the engine compartment. Most people also judge the abnormal sound of the engine compartment from the sound source. It is usually a metal squeak or a whistling noise.

Compared with the squeaking of the harsh belt, this is generally caused by the slip of the belt; the sharp sound of the dry friction of the metal parts when the engine is running, which is generally the cause of damage to the bearings of the generator, the water pump and the steering assist pump; The sound may be the result of blockage of the exhaust system, leakage or breakage of the vacuum tube.

The abnormal noise of the engine indicates that the technical status of an engine has changed. Mainly due to some parts worn or even assembled or improperly adjusted. Some abnormal sounds can predict that the engine will be accidentally damaged. Therefore, when the engine has abnormal noise, it should be repaired in time to prevent the fault from expanding.