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The shock absorber has a service life, and when the car has these 2 characteristics, the shock absorber may need to be replaced
There are many wear parts on the car, which need to be replaced according to the time of use or driving mileage, but most of the wear parts we are familiar with, such as brake pads, spark plugs, tires, etc., and the replacement cycle is also familiar. However, most people know little about the maintenance of shock absorbers. In fact, shock absorbers and these loss parts are similar and have service life. Like shock absorber and other rubber parts, it will also age; And the shock absorber used for a long time, will also appear loose, produce abnormal sound.
Although the service life of the shock absorber is long, but there will be aging one day, aging will need to be replaced. But we have to admit, for us, most of the shock absorber replacement, because of oil leakage, this is because oil leakage observation is the most intuitive, the most easy to find. In fact, there are many failure forms of shock absorber aging and damage, among which chassis abnormal noise and jitter are one of them. There are two main characteristics of abnormal noise caused by the aging (fault) of shock absorpers. First, it occurs on uneven road surface, and the body shakes seriously on uneven road surface, which is caused by abnormal noise caused by shaking. Second, the vibration caused by the shock absorption failure may suddenly appear at a certain speed, for example, when the car runs to 80KM/h, the body suddenly appears shaking, the whole car is shaking, shaking directly produces abnormal sound.
Shock absorber dust sleeve deformation may also cause abnormal sound
In fact, in addition to oil leakage, it is difficult to find whether there is a problem with the shock absorber from the appearance. Only when the shock absorber is removed can the problem be found after inspection. So, how long does the shock absorber need to be replaced?
Different from antifreeze, oil, spark plug and other clear replacement cycle, how long shock absorber replacement, opinions vary, and there is no unified statement. There are two views on the aging of shock absorber. One view is that it is not bad. If there is no oil leakage, no abnormal sound, normal elasticity and no deformation, there is no need to change it. Another point of view is the preventive replacement of shock absorpers, which is generally recommended to be replaced every 100,000 kilometers, in order to maintain the comfort of the vehicle, like tires, such as rubber parts for the car, preventive replacement for safety and comfort.
The shock absorber must be replaced when the oil leakage is serious
In fact, no matter which of these two views is adopted, it is reasonable to blame, shock absorpers and vehicle comfort are closely related, and preventive replacement in advance can maintain the comfortable performance of the car. And damper damage does not cause the car to break down like a broken generator belt, so the view of “shock absorbers are not broken or replaced” is not wrong. But it should be noted that there are many forms of shock absorber damage, some failure forms are difficult to find, such as shock absorber fever, if the fever is serious, it must be replaced. In fact, chassis abnormal sound is often difficult to find, because the shock absorber fault caused by abnormal sound, often in uneven road or a certain speed will appear, such as the speed of 80km/h suddenly appear chassis abnormal sound, most of which is related to shock absorber. But below this speed, abnormal sound does not necessarily exist, this is not like deformation, oil so easy to observe, this is the place to pay attention to.
Shock absorber deformation is often the manifestation of oil leakage
In addition, when the car passes the shock absorption belt, it feels only the support of the spring without the support of the shock absorption; Or there is a significant shaking of the body when braking; Or when the car is driving on uneven roads, the comfort is greatly reduced, which is a consideration for the replacement of the shock absorbers, because any change in the comfort of the chassis may be related to the shock absorbers.
Considering that the shock absorber has a service life and the replacement cycle is not strictly regulated, for old cars, it should be checked regularly, or pay attention to the abnormal noise (noise) of the car at a certain speed, and the replacement of shock absorber must be replaced by genuine shock absorber with guaranteed quality.
Post time: Dec-16-2022