The abnormal noise of automobile chassis may be the abnormal noise of automobile suspension. Automobile suspension system generally includes upper and lower swing arms, balance bars, ball heads and so on. Abnormal sound caused by suspension system is generally dull or crisp impact sound. For example, after the tie rod of the balance bar is damaged or the bushing is worn, it will emit a continuous abnormal sound of "Gloeggler" when passing through the bumpy road, and a relatively dull "knocking" sound will appear when passing through the potholes or bumpy road.

If this abnormal noise occurs in the vehicle, it is best to repair it as soon as possible. Damage to suspension system will lead to direction deviation, tire biting and other consequences.

It is also possible that the constant velocity universal joint is commonly known as the ball cage, which is divided into an inner ball cage and an outer ball cage. If there is an abnormal sound similar to "ga ga ga ga ga ga ga ga ga ga ga ga ga ga ga ga ga ga ga ga ga ga ga ga ga ga ga ga ga ga ga ga ga ga ga ga ga ga ga ga ga ga ga ga ga ga ga ga ga", it is generally caused by the serious wear of the constant velocity joint. Just confirm where the abnormal sound is, and replace the constant velocity joint.

Abnormal sound of automobile bearing. No matter how big the tire is, the connection between the body and the tire depends on a small wheel core bearing. If the wheel core bearing is damaged, the vehicle will make a continuous abnormal noise like "buzzing". The faster the speed, the louder the noise. If the bearing is slightly damaged, there will be abnormal sound in the tapping direction. Serious bearing damage will lead to tire deviation, and serious tire eating will lead to tire falling off.

Abnormal noise of the exhaust pipe is generally manifested as "poop-poop" sound after the vehicle is started, and the refueling door has a roar similar to that of a sports car. This situation is generally caused by the rupture or air leakage of the exhaust pipe.

The above is the common abnormal noise of automobile chassis. If the vehicle has the above abnormal sound, it must be repaired and replaced as soon as possible. Because the abnormal sound of a car is a difficult disease, after all, a car is made up of 10 thousand parts, and there are many reasons for the abnormal sound, so the specific situation has to go to the repair shop for detailed maintenance.