The shock absorber is a vulnerable part during the use of the car. The working quality of the shock absorber will directly affect the smoothness of the car and the life of other parts. Therefore, the shock absorber should always be in good working condition. The following is a related introduction about the shock absorber: 1. Function: Shock absorber (Absorber), the shock absorber is mainly used to suppress the shock and the impact from the road surface when the spring rebounds after absorbing the shock. When passing through uneven roads, although the shock-absorbing spring can filter the vibration of the road, the spring itself will reciprocate, and the shock absorber is used to suppress this spring jump. If the shock absorber is too soft, the body will jump up and down. If the shock absorber is too hard, it will bring too much resistance and prevent the spring from working properly. 2. Matching: In the process of modifying the suspension system, the hard shock absorber should be matched with the hard spring, and the hardness of the spring is closely related to the weight of the car, so heavier cars generally use harder shock absorbers. The device connected to the shock-inducing crankshaft is used to counteract the torsional vibration of the crankshaft (that is, the phenomenon that the crankshaft is twisted by the impact of the ignition of the cylinder).