The shock absorber is an important component in the automobile suspension system. Its function is to restrain the spring from absorbing vibration deformation and the shock when the spring rebounds, and absorb the impact force from the road surface. It will affect the ride comfort and handling of the car, as well as our driving safety. It is also a consumable part that will experience a decrease in performance or loss of function over time.

The shock absorber is an important component in the automobile suspension system. Its function is to restrain the spring from absorbing vibration deformation and the shock when the spring rebounds, and absorb the impact force from the road surface. It will affect the ride comfort and handling of the car, as well as our driving safety. It is also a consumable part that will experience a decrease in performance or loss of function over time. Generally, after the shock absorber is damaged, there are the following faults:

How to tell if the shock absorber of the car is damaged? Do the shock absorbers need to be replaced in pairs?

1. The shock absorber leaks oil. The outer surface of the normal shock absorber is dry and clean. If there is oil seepage, it means that the hydraulic oil inside the shock absorber is escaping from the upper part of the piston rod. In this case, the shock absorber has basically failed;

How to tell if the shock absorber of the car is damaged? Do the shock absorbers need to be replaced in pairs?

2. When the car passes the bumpy road or the speed bump, a certain wheel makes a “bang” sound, indicating that the shock absorber on this wheel has poor vibration reduction effect or failure;

How to tell if the shock absorber of the car is damaged? Do the shock absorbers need to be replaced in pairs?

3. When the car is cornering, it is obvious that the body roll is increased, and when the speed is fast, it may even slide and flick. This is mainly because the damping force of the shock absorber is too small, which cannot effectively suppress the compression of the spring;

How to tell if the shock absorber of the car is damaged? Do the shock absorbers need to be replaced in pairs?

4. After the car runs on rough roads for a period of time, we touch each shock absorber shell with our hands to feel the temperature of the shock absorber. Under normal circumstances, the shock absorber shell is warm. If a shock absorber shell is cold , indicating that the shock absorber has been damaged;

How to tell if the shock absorber of the car is damaged? Do the shock absorbers need to be replaced in pairs?

5. When the car is stopped, when we press down and release the corner of the car body, the body will rebound under the spring force. If it tends to stabilize soon after rebounding, it means that the shock absorber is good; if it is repeated It stops after a few vibrations, which means that the damping effect of the shock absorber is very poor.

How to tell if the shock absorber of the car is damaged? Do the shock absorbers need to be replaced in pairs?

Damage or failure of the shock absorber not only affects the ride comfort of the car, but also affects the handling performance of the car, which will reduce the adhesion between the wheel and the ground, and the body rolls when encountering bumpy road conditions or cornering. It will increase, and in severe cases, the wheels will leave the ground, and the car is in danger of losing control. Therefore, we need to replace the damaged shock absorber in time. Generally, the shock absorbers of the two wheels on the same axis are replaced at the same time. Otherwise, the two shock absorbers have different vibration reduction effects, which will lead to inconsistent left and right steering feel of the car, and inconsistent body roll, which will make the car difficult to control when changing lanes, overtaking, and cornering at high speeds, increasing the risk of driving. So, don’t try to save money, just replace the damaged shock absorber. In addition, when replacing the shock absorber, the parts related to the wheel alignment will be removed, so a four-wheel alignment needs to be done to prevent the wheel alignment from being misaligned.

How to tell if the shock absorber of the car is damaged? Do the shock absorbers need to be replaced in pairs?

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