What happens if there is a problem with the shock absorber?

The shock absorber is a vulnerable part in the process of car use, the shock absorber works well or badly, which will directly affect the stability of the car and the life of other parts, so we should always make the shock absorber in good working condition. The following methods can be used to verify whether the shock absorber is working well.

1. Make the car stop after driving 10 kilometers 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.

2 Press the bumper firmly and then release, if the car has 2 3 jumps, then the shock absorber is working well.

3 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.

4 remove the shock absorber to stand upright, and clamp the lower end connecting ring on the vice, pull and press the shock absorber bar several times, there should be stable resistance at this time, the resistance to pull up and restore should be greater than the resistance when pressing down, if the resistance is unstable or there is 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.

After determining that the shock absorber is faulty or failing, you should first check the shock absorber for oil leakage or signs of old oil leakage.

If oil leakage is found, first tighten the cylinder head nut, if the shock absorber is still leaking, it may be that the oil seal and sealing gasket are damaged and failed, and the new seal should be replaced. If the oil leakage still cannot be eliminated, the shock absorber rod should be pulled out, if you feel a hairpin or a difference in weight, further check whether the gap between the piston and the cylinder barrel is too large, whether the piston connecting rod of the shock absorber is bent, and whether the piston connecting rod surface and cylinder barrel are scratched or stretched.

If there is no oil leakage in the shock absorber, the shock absorber connecting pins, connecting rods, connecting holes, rubber bushings, etc. should be checked for damage, desoldering, cracking or falling off. If the above inspection is normal, the shock absorber should be further decomposed, check whether the matching gap between the piston and the cylinder barrel is too large, whether the cylinder barrel is strained, whether the valve seal is good, whether the valve disc and the valve seat are tightly fitted, and whether the extension spring of the shock absorber is too soft or broken, and repair or replace the parts according to the situation.

In addition, the shock absorber will make a sound in the actual use of the fault, which is mainly due to the shock absorber and the leaf spring, frame or shaft collision, rubber pad damage or falling off and shock absorber dust cylinder deformation, insufficient oil and other reasons, should be found out the cause, to be repaired.

It is difficult to correct the deformed shock absorption, and even if it is corrected, the rigidity is not as good as new.

Preamble: With the improvement of people's living standards, the car has become more and more an indispensable means of travel for every family, the car is composed of many parts, so if the shock absorber of the car is broken, what will be the fault performance? Let's take a look! <>

1. The impact of abnormal automobile shock absorbers on the vehicle. If the car's shock absorbers fail, the car will make a metal crash sound when driving through large potholes or raised sections. If the car has a tail flick phenomenon, or the steering ability of the car is weakened, and the rear wheel grip ability is reduced, it is also necessary to consider whether the shock absorber of the car is faulty.

At the same time, when the shock absorber of the car fails, the driver's control of the car will be relatively troublesome, because when the shock absorber of the car fails, the car will shake accordingly, which will affect the driver's control of the car. If the passenger who is not prone to motion sickness has motion sickness on the vehicle, it is also necessary to consider whether it is the result of the failure of the vehicle shock absorber, because when the shock absorber fails, the balance of the vehicle will be worse, and the constant bumps will easily make people feel dizzy. <>

Second, the cause of the failure of the automobile shock absorber. The most common cause of shock absorber failure is an oil leak from the shock absorber. When the shock absorber leaks oil, the sleeve of the vehicle decreases due to the oil pressure, which reduces the shock absorption effect on the vehicle, and it will also be accompanied by abnormal noise.

And if the shock absorber of the car can not be installed, it will also cause the abnormality of the shock absorber, because when the vehicle is repaired, the maintenance worker may not fix the nut of the shock absorber, resulting in the failure of the shock absorber. If the car is driven for a long time and the car is not regularly overhauled, it is easy to cause the shock absorber of the car to deform. During the driving process of the car, the piston rod and cylinder barrel in the shock absorber have great damage, so another reason for the failure of the shock absorber is the deformation of the shock absorber due to a long-term collision.

3. Maintenance measures for vehicle shock absorber failure. When the driver finds that the shock absorber is abnormal in the process of driving the car, the first thing is to check the oil leakage of the shock absorber, if it is because the oil seal washer on the shock absorber is damaged, or the nut that fixes the shock absorber is loose, it is necessary to replace the damaged parts of the vehicle in time. If it is not the cause of the shock absorber oil leakage, you need to go to the maintenance department or the vehicle's 4S shop to check whether there is a problem between the piston and the cylinder barrel of the car.

If there is a problem, a professional maintenance personnel are required to repair the vehicle. In short, the vehicle shock absorber plays a very large role in the safe driving of the vehicle, when the vehicle shock absorber fails, the owner must overhaul the vehicle in time.

The car will have a noticeable sense of bumps, and it will also affect the damage of other parts, and it will not be able to drive on high ground without strong seismic performance.

The car will be severely affected, there will be oil leakage, and the grip will be unstable, the phenomenon of rolling over will occur, and the tires will have severe wear.

The car will shake particularly when passing over the speed bump, and the sense of vibration is particularly strong, and there will be some abnormal noises in the process of driving.

When there is a problem with the shock absorber of the car, the car will not be able to maintain the smoothness of the vehicle in some special areas, and the grip is not firm, and the braking function will also be affected。And it can also be seen that it is not only the seats that can bring comfort to people in the car, but also the shock absorption system is also very important. There are two types of shock absorbers in automobiles, one is hydraulic shock absorption and the other is air shock absorption.

The hydraulic shock absorber is actually the hydraulic oil placed in the shock absorber, when the car is driving, if it encounters an uneven road, the vibration will be intensified. <>

After the reaction force is shaken, the hydraulic shaft will appear incompressible, so it will make a reaction force for the vehicle when it sinks. And there is also a relief valve inside the shock absorber, which allows the hydraulic oil to flow out slowly. Then when the vehicle sinks, it can achieve the effect of retardation, and there is a shock absorbing spring in the hydraulic shock absorption system.

When working with each other, the car can achieve cushioning and shock absorption, and can also reduce bump fatigue. <>

Shock absorption effect: If the shock absorber leaks, the spring fatigue will soften, and the shock absorption effect of the vehicle will be reduced during driving. Then when the hydraulic oil leaks, the car has no shock absorption effect at all. In addition, the unilateral shock absorption oil leakage will also lead to the phenomenon that the body is high and low on one side, and there may also be deviation failures in the process of driving.

And when the extension capacity of the spring decreases, the car will sink, so the shock spring will not be able to bring reaction force to the vehicle. <>

If you check the shock absorber, the sinking speed will be faster than normal, and the effect of shock absorption and cushioning will be reduced. The hydraulic pressure on the shock absorber will slowly increase, and then lead to oil leakage in the shock absorber. Therefore, it can also be seen that after the front system is damaged, it will have an impact on the passenger and the driver, and it will cause risks to the driving, so it is necessary to check the shock absorber in time.

In the process of driving, if there is a particularly bumpy concession, the comfort will be greatly reduced, and the spring may also appear in the situation of Tanhuai's **.

The car will have very serious problems, accidents are likely, and it will also affect the car's braking system and affect the car's shock absorption performance.

The car may be in a state of bump all the time, and the car will be particularly unstable, and sometimes it will directly overturn.

What is the impact of a bad car shock absorber The impact of the quality of the shock absorber on the working performance of the car is as follows: 1. The car shock absorber is not replaced, and during the operation of the vehicle, due to the road surface conditions, the vehicle itself will have a certain impact force; 2. The generation of this force, first of all, it will affect the safe driving of the vehicle, and will change the driving speed and fuel consumption; 3. Damage to vehicle parts. Since the impact force cannot be slowed down and eliminated, it will first hinder the normal operation of the engine, and secondly, due to the constant turbulence, the torsion connection of the engine's power output will be unexpected.

When the car is bumpy on the road, the shock absorber makes a "rattle" or "creak" sound, when the car drives slowly and brakes urgently, if the car vibrates more violently, these phenomena indicate that the shock absorber is good, and one of the most important manifestations is the shock absorber oil leakage, which also indicates that the shock absorber is broken.

Fault check if the shock absorber is broken: check the appearance of the shock absorber for signs of oil leakage, press the four corners of the car with your hands, check the bouncing of the body and whether there is any abnormal noise.

The judgment method of the broken shock absorber, stop the car after driving 10 kilometers 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 test, if the shell is hot, it is a lack of oil inside the shock absorber, and enough oil should be added, otherwise, the shock absorber is broken.

The way to check the quality of the shock absorber in situ, the car is parked, stand in the position where the shock absorber is, press down the body hard, after letting go, if the car jumps no more than once or twice, it means that the shock absorber is working well. If you keep nodding your head up and down, and the body swings up and down more than 3 times, the shock absorber is broken.

Solution: Replace the shock absorber with a new one.

What is the harm of a broken shock absorber, the car shock absorber leaks, if you don't change it, there are still a lot of disadvantages.

1. If the shock absorber is leaked and not replaced, long-term driving will reduce the shock absorption effect of the car, causing the vehicle to make abnormal noises when driving on bumpy roads, damaging the entire suspension of the car, and causing the deformation of the car suspension.

2. In addition, if the shock absorber is not replaced for a long time, it will also affect the ride comfort.

3. Oil leakage of shock absorber will cause uneven force on both sides of the tire, which will hinder the vehicle control, and cause fault phenomena such as tire deviation for a long time.

Photo by Pacific Automobile Network Q&A).

If the car shock absorber is broken, it will not fail all at once, it will have such a gradual process:

1. Oil leakage: The early sign of a bad shock absorber is oil leakage, or the most common problem of the shock absorber is oil leakage, and a series of symptoms after that are caused by oil leakage. Slight oil leakage will not make a significant difference in the damping effect, and it needs to leak to a certain extent to feel it.

2. The car jumped a lot: the role of shock absorption is to absorb the elastic potential energy of the spring, and the way of absorption is to rely on the damping of the shock absorbing oil.

3. There seems to be no shock absorption: oil leakage will make the shock absorption absorb a lot of dirty things, resulting in stagnation and then stuck, and when passing over potholes, the wheels seem to hit directly on the feeling. Pressing the shock with the weight of the body, there is no rebound at all.

Why is it recommended to replace the shock absorber in pairs if it is damaged:

OneIf the shock absorber is replaced because of normal aging oil leakage, then the other shock absorbers are basically in an aging state, and it must not take long after the new shock absorber is replaced, and the other shock absorber is leaking oil, so it is better to replace them all directly. (Since the working conditions of the front and rear shock absorbers are not the same, it is recommended to replace them in pairs).

IIBecause the shock absorber affects the ride comfort of the whole vehicle, if the shock absorbers on the left and right sides of the vehicle are not the same (the old shock absorber may be loose due to aging; The new shock absorbers are tighter) and the handling comfort is greatly reduced during driving. At the same time, if the vehicle is driving under high-speed extreme conditions, the shock absorbers of different old and new ones may also have a certain impact on driving safety.

The hazards of shock absorber failure are: 1. The car is bumpy and violent while driving; 2. The safety is reduced, and it is easy to be dangerous when braking or changing direction; 3. Poor handling, increasing tire rotation resistance and reducing vehicle control. The symptoms of a broken shock absorber in a vehicle are:

1. Oil leakage from shock absorber; 2. When the car crosses the bumpy road or speed bump, the wheels make an abnormal sound; 3. The roll of the body increases when turning, and skidding will occur in severe cases; 4. Touch the shock absorber shell with your hands when driving on rough roads, feel the temperature of the shock absorber, the normal shock absorber shell is warm, and the shock absorber shell is cold, indicating that it has been damaged.