What do you need to pay attention to when replacing the shock absorber of the car?

Replacing the shock absorber of the car, you need to pay attentionShock absorbersIt is necessary to use accessories produced by regular manufacturers to avoid damage to the shock absorber when the car is driving. To replace the shock absorber of the car, you also need to pay attention to the use of special tools, replace the shock absorber for the car, and go to the car repair shop to do it after changing the shock absorberWheel alignmentto avoid excessive wear of one side of the tire when the car is driven for a long time. The shock absorber of the car is a consumable accessory, the longer the car drives, the shock absorber will slowly stretch, and the car will reduce the comfort when driving, and there will be bumps up and down.

There are also some cars often driving on mountain roads, muddy roads will speed up the loss of shock absorbers, therefore, car shock absorbers are used for too long, or often walk on muddy roads, we must pay attention to timely replacement, so as to avoid traffic accidents.

1. The replacement shock absorber must pay attention to the regular manufacturer to buy, and see the specifications and models of the shock absorber clearly, so as to avoid damage to the shock absorber when in use

When buying shock absorbers, you must choose products produced by regular manufacturers to see whether they meet national standards, so that you will have no worries. When you buy shock absorbers, you must look at the model and specifications used in your vehicle, so as to avoid improper installation when replacing them. Due to the mixed quality of goods on the Internet, it is recommended that you go to a physical store to buy a car shock absorber.

If you can't install it, some brick-and-mortar stores will also provide technical support.

It's more *** than the online store.

Second, the shock absorber must pay attention to the use of special tools to tighten the screws, and go after replacement4S shopCheck the wheel alignment to avoid excessive wear on one side of the tire in the future

When replacing the shock absorber, you also need to buy a special screwdriver.

Tighten the screws, ordinary screwdrivers cannot tighten the screws of the shock absorber enough. Sometimes, after replacing the shock absorbers, the car will deviate, and the tire on one side will wear too much after driving too long. Therefore, after replacing the car shock absorber, it is necessary to test the four-wheel alignment to ensure the safe driving of the car.

So, do you know the benefits of replacing a shock absorber for your car?

In the process of changing the car inspection, you must ask a professional master to come, because this is related to the safety of the car, if there is a step not done, it will make the car in the driving will be very damaged.

We should pay attention to the use of a wrench to screw the screws, and we must also operate it well, and we should also use some better tools, which should pay attention to our own safety and pay attention to the problem of springs, which should be paid attention to.

First of all, match whether the vehicle and the product are compliant; Record the height data of the original body, and go to a professional store to replace it with professional tools (some functions and service life of shock absorption will be damaged by yourself);

It is recommended to replace it in pairs, and the service life will be longer;

Now they have all been replaced, complete sets of accessories, saving much money;

After replacement, be sure to do four-wheel alignment;

Just after changing the shock absorber, the body may be a little high, drive for a while, after running-in, it will return to normal;

First of all, it is necessary to use a special torque wrench to operate, the operation should be standardized, the position of the spring rotation base and the spring should not be misaligned, every screw on the chassis should be tightened, and the four-wheel alignment should be re-done.

There are no strict requirements for how often car shock absorbers should be replaced, and there is no such requirement in the manufacturer's repair manual. The main thing is to see if there is oil leakage in the shock absorber

Whether the cushioning rubber inside the shock absorber is aged, cracked and damaged. If this is not the case, it means that the basic condition of the shock absorber is good.

Types of shock absorbers.

1. Hydraulic shock absorber.

Hydraulic shock absorbers are widely used in automotive suspension systems. The principle is that when the frame and the axle reciprocate relative to each other and the piston reciprocates in the cylinder barrel of the shock absorber, the oil in the shock absorber housing repeatedly flows from the inner cavity through some narrow pores into the other inner cavity. In this case, the friction between the liquid and the inner wall and the internal friction of the liquid molecules form a damping force on the vibration.

2. Inflatable shock absorber.

The inflatable shock absorber is a new type of shock absorber that has been developed since the 60s. Its structure is characterized by a floating piston installed at the lower part of the cylinder barrel, and a closed air chamber formed at one end of the floating piston and the cylinder barrel is filled with high-pressure nitrogen. The floating piston is fitted with a large cross-section O-ring that completely separates the oil and gas.

The working piston is equipped with a compression valve and an extension valve that change the cross-sectional area of the channel with the size of its movement speed.

3. The resistance is adjustable.

The suspension of a car equipped with an adjustable resistance shock absorber generally uses a gas spring with variable stiffness as an elastic element. The principle is that if the air pressure of the air spring rises, the pressure in the air chamber of the shock absorber also increases, and the throttle aperture of the oil changes due to the change of pressure to achieve the effect of shock absorption.

How often are car shock absorbers generally replaced? Do I need to check it frequently when I maintain it?

For the shock absorber on the car, there is no strict requirement for how often it needs to be replaced, and for the manufacturer, equipped with the maintenance manual, there is no specific requirement in this regard, so we can take a look at it with our eyes when we usually maintain, as long as we see whether there is oil leakage on it, and whether there is any damage caused by aging and cracking of the rubber in the shock absorber, if there is none, it means that the basic condition of the shock absorber is still very good.

There are many factors that lead to the life of the shock absorber, such as the road traffic environment, as well as personal driving habits and the quality of the shock absorber itself, etc., and then I will tell you what is the most common performance when the shock absorber fails?

Shock absorber failure, basically abnormal noise oil leakage, heavy steering, etc., shock absorber failure does not actually affect safe driving, but it will affect the handling and driving feeling of a car, shock absorber oil leakage, is a very common fault, many car owners are basically difficult to judge, this kind of problem is found when there is a maintenance machine, especially the oil leakage is more powerful, for some experienced old drivers, may feel that the car will shake more than before in the process of driving, At this time, you must look at the shock absorber to see if there is an oil leak, if it is serious, it will be accompanied by a knocking sound, which is mainly manifested in the front shock absorber.

Shock absorber abnormal noise, involved in more problems, we usually say that the shock absorber is composed of a number of parts, shock absorber abnormal noise, mainly in the process of driving can be felt, just like who keeps beating the drum, especially on some gravel roads, the faster the speed, the more obvious the sound, look at the shock absorber does not leak oil, that is, there is a problem with the hydraulic components in the shock absorber, it has nothing to do with the wind, you just need to replace the shock absorber, no need to change the assemblyIf there is sometimes a beeping sound, and the steering wheel is accompanied by a slight sense of vibration, then this is the shock absorber, the top glue is not good, the steering wheel is heavy and it is also caused by this part, for a long car, the roof glue is below, the plane bearing, very easy to break, once the steering wheel is broken, it is very heavy, but now the development of science and technology is very fast, and the damping friction parts are also used, its wear resistance, relatively high, and the number of failures is relatively small, We must know that any parts are artificially designed, and there is a problem of probability, and it is inevitable that the damping parts will enter the dust due to wear and tear in the later use process, or problems such as insufficient lubrication.

Answer: Since the average car travels 20,000 kilometers per year, and the shock absorbers are replaced in pairs, the replacement frequency is once every four years. In fact, the frequency of replacement varies depending on the vehicle condition, road conditions and the manufacturer of the shock absorber. Shock absorbers have two main functions for automobiles:

The first is to dampen the vibration transmitted to the body due to uneven road surface or poor driving conditions, so as to maintain the smoothness of the vehicle and the comfort of the seat. The second is to quickly eliminate the vibration of the axle and wheel caused by the road surface, and ensure that the wheel grips the ground at any time, so as to ensure the steering and braking functions of the vehicle and improve the safety of the vehicle. The following methods can be used to verify whether the shock absorber is working well.

First, under normal circumstances, if the shock absorber is found to be leaking, it means that there is a problem with the shock absorber, and it should be repaired at this time to avoid abnormal operation of the shock absorber. The second is to press the bumper hard and then release it, if the car has 2 or 3 jumps, it means that the shock absorber is working well. Third, when the car is driving slowly and braking urgently, if the car vibrates violently, it means that there is a problem with the shock absorber.

Fourth, the car stops after driving 10km on the road surface with poor road conditions, and touches the shell with your hands, if it is not hot enough, it means that there is no resistance inside the shock absorber, and the shock absorber does not work. Second: The shock absorber will also be replaced for the following reasons:

First, it is to improve and update the original functional state; Second, the car is subjected to excessive up-and-down and left-right vibrations, nodding when braking and irregular tire wear; the third is the excessive tilt or sway of the car when turning; Fourth, the shell is worn or damaged, resulting in shock absorber oil leakage and affecting the performance of the shock absorber; Oil leaks are the most problematic shock absorber and can be caused by many causes, the most common being cracks caused by rampage.

1. Due to different driving methods and driving locations, the shock absorber should be replaced after 20,000 kilometers. Of course, due to the influence of different factors such as load capacity, use time, road conditions and driving methods, it will also cause different degrees of attenuation of shock absorbers;

2. If there are traces of uneven wear on the tread, it means that the shock absorber is worn;

3. General wear and tear will affect the sealing of the shock absorber. When worn, fluid will leak out of the shock absorbers.

4. When the car passes over bad roads, railway tracks or other bulges, if the suspension is in contact with the end, the shock absorber should be replaced. As a simple test method, you can use your feet on the bumper and swing the car several times. If the car trembles after releasing the foot from the bumper, the shock absorber should be replaced;

5. When you need to replace the shock absorber, it is best to replace two at a time, when there is a problem with one front or rear shock absorber, you need to replace the front or rear shock absorber with FAW, because when you replace one, the balance of the car is uneven, which will cause different forces on the shock absorber, and there will be a shock absorber problem!

The car shock absorber is not replaced according to the time, generally 20,000 kilometers to be replaced, but also according to the quality of the shock absorber to determine whether it needs to be replaced:

First, make the car stop after driving 10km on the road surface with poor road conditions, touch the shock absorber shell with your hands, if it is not hot enough, it means that there is no resistance inside the shock absorber, and the shock absorber does not work. At this time, you can add appropriate lubricating oil, and then carry out the test, if the shell is hot, it is a lack of oil inside the shock absorber, and sufficient oil should be added; Otherwise, the shock absorber is out of order.

Two, press the bumper hard and then release, if the car has 2 or 3 jumps, then the shock absorber is working well.

Third, when the car is driving slowly and braking urgently, if the car vibrates violently, it means that there is a problem with the shock absorber.

Fourth, remove the shock absorber to stand upright, and clamp the lower end of the connecting ring on the vice, pull and press the damping rod several times, at this time there should be stable resistance, the resistance to pull up (recovery) should be greater than the resistance when pressing down, if the resistance is unstable or no resistance, it may be that the shock absorber is lacking oil inside or the valve parts are damaged, and the parts should be repaired or replaced.

One. Automobile shock absorbers, generally in the case of oil leakage or abnormal noise, need to be replaced to solve the problem.

Two. The inside of the automobile shock absorber relies on hydraulic oil to play the role of damping and damping, so it needs to be replaced after the oil leakage.

Three. It is also necessary to replace the shock absorber when the shock absorber loses its damping effect and makes an abnormal noise when driving on uneven roads.

2. You can check it during maintenance, and replace it when the wear is serious.

The shock absorber does not need to be replaced if it is not broken, and the shock absorber will not be broken under normal circumstances, so the shock absorber can generally be scrapped with the car all the time.

"The average car travels 20,000 kilometers per year, and the shock absorbers are replaced in pairs, so the frequency of replacement is every four years. ”

The replacement of the shock absorber needs to be more careful, the shock absorber of the car is very important, it must be paired with the model when installing, and it is necessary to see whether the model matches when purchasing, of course, it must be stable when replacing the shock absorber, and it must be installed just right.

The installation of the current shock absorber itself is a complex process, which requires a lot of sophisticated instruments to be able to install the shock absorber, which can be clearly known in life.

1. Be careful when replacing shock absorbers.

The parts on the car itself are very important, so when replacing, you must be careful to knock on the benefits, especially when the shock absorber is installed on it, it must be fixed completely, and the shock absorber must be completely on and put in the right position, especially during the tenure of the superior, you must be careful, a little carelessness may scratch or press the hand, which will be very dangerous, so you must pay attention to safety precautions.

2. Replace the model to be paired.

Of course, when installing the shock absorber, it must be equipped with a model, if the same model is installed with the temporary lock, then there is no problem, but there is no attention to the model, and when the shock absorber is installed, it will not have any effect on the car at all, but it will affect the car driving, and even when there is a problem, the shock absorber of the car can not be supported at all, so the model must be paired, and there can be no major problems.

3. Replace the shock absorber and need to be stable.

Of course, the shock absorber must be stable, the shock absorber itself is a very important part of the car, because when driving on bumpy roads, shock absorbers need to play an important role, if the shock absorber is not installed to stabilize in the bumpy road section, the problem may lead to the car breaking down or the car collapse, which is possible, so replacing the shock absorber must stabilize its fixed position.

The problem that needs to be paid attention to when replacing the automobile shock absorber is more about personal safety, so whether it is professional or non-professional, when installing the integrator, you must prepare for safety measures in advance, and be more careful.