In the face of sudden abnormal noise in the car, we still have to pay attention to it, such as abnormal noise in the chassis. Sometimes there may be some problems. If you don't pay attention to it, there may be big problems. Let's take a look at the abnormal sound of the car chassis.

1, interference between parts

Possible cause: The two components interacted due to the impact or installation of other equipment.

Solution: Only through plastic repair or replacement of related parts can there be no interference between parts.

2. Abnormal sound of wheel bearing

When the car is driving, you will hear a continuous "buzzing" sound. The faster the speed, the louder the sound, and the sound covers the whole carriage (people can't hear where this abnormal sound comes from. ) Generally, it is caused by loose wheel bearing wear or eccentric tire wear. This situation requires inspection, repair or replacement of wheel bearings.

3. Abnormal sound of braking system

When the brake system finds abnormal noise, you will hear a series of harsh metal friction when braking with one foot while driving, which is the most unbearable. There is abnormal noise in the braking system. First, check whether the brake pads are polished. Brake pads are wearing parts, and the thickness should not be less than 3mm, otherwise they should be replaced.

4. Abnormal chassis noise during gear shifting.

This may be caused by worn gears or lack of oil in the transmission. The solution is to check whether the transmission lubricating oil is sufficient first. If there is no external fault, you can only open the box for inspection.

5. Loose bolts or nuts

Possible reasons: driving on the road with poor road conditions for a long time makes the bolts loose naturally; Improper disassembly and installation will damage the bolts; Insufficient tightening torque or incorrect bolt specifications.

Solution: Tighten or replace bolts and nuts.