When C5 crosses the pothole, there is an abnormal sound at the side chassis of the driver, ask for h

Hello! Glad for your question.

Loose chassis generally occurs in older cars, when the car is driving in bad road conditions, the steering wheel will feel unstable, the bottom of the car will also come out of the abnormal sound, usually the old driver can feel the overall a little loose, when encountering such a situation, it means that the chassis may be loose, and the reasons for this situation are divided into several, only by understanding the reasons, can we better prevent this problem from happening.

The first reason is the aging of rubber parts, we all know that the elasticity of rubber is particularly good, which can buffer the friction between parts and reduce noise at the same time. However, this kind of thing has a lifespan, and it will age after a long time, and the elasticity is not as good as before, so the buffering capacity will decrease, resulting in abnormal noise in each part, so it is necessary to check these rubber parts regularly and replace them in time.

The second possibility is the reason for the shock absorber, the main role of this part is to inhibit **, when the car is driving in the dustpan section, it will have an impact with the road surface, and the shock absorber can well ensure the smoothness of the car, if the shock absorber is damaged, there will be a scoop phenomenon, so that the chassis is loose, so usually check the shock absorber, if there is a leakage to repair in time.

The third is the clearance of the parts, that is to say, the ball head may be loose, this part is like the joint of the human body, if the ball head is loose, there will be a large gap between the lever and other connected parts, if the gap is too large, when crossing some dustpan roads, the screws between the subframe and the suspension will be loose, then the chassis will become loose, so usually check these two parts. Thank you.

On flat ground, find someone to press the hood to make the body shake to see if it is a shock absorber problem.

Can you go to the repair shop and check if there is a problem with the lower suspension or something?

If the vehicle makes an abnormal noise on the pothole, it is likely that the suspension and chassis systems of the vehicle are faulty.

Common points of failure in suspension systems are:

It may be that the bracket is deformed, and on the driving pothole, the bracket is deformed by impact, so there will be abnormal noise.

It may be that the tie rod is deformed, and the bracket is deformed due to impact on the pothole, so there will be abnormal noise.

It may be that the ball head is loose, and the gap inside the ball head becomes larger after being used for a long time, so there will be abnormal noise.

It may be that the shock absorber is leaking oil, and the shock absorber will leak due to the aging of the internal oil seal after a long period of use, so there will be abnormal noise.

Common points of failure in undercarriages:

It may be that the rubber at the junction of the parts of the chassis and the parts is aging and cracking, which causes the abnormal sound caused by the hard collision between the parts and the parts.

The pit is caused by the loosening of the screws of the parts of the chassis and the links of the components.

The specific fault point is recommended to be determined after the inspection of the lifting vehicle.

Probably - a loose gasket hanging somewhere.

The booster ball head is worn.

Listening to the sound is not a big problem, it may be that the shock absorption is a little softer, or you are too fast on the pothole.

The front is mainly the lower arm and the tie rod have a high possibility of clearance, and the rear shock absorption is more likely.

Check the chassis, at a glance It may be too worn.

There is a high probability that the shock absorber is broken, so it is recommended to check whether it is broken.

1. The engine has abnormal noise.

Symptom description: There is a lot of abnormal noise in the engine compartment, and most people also judge it to be the abnormal noise of the engine compartment by the sound**, which is usually a metal screeching sound or a howling sound.

Solution: The abnormal engine noise indicates that the technical status of a certain mechanism of the engine has changed. It is mainly caused by excessive wear and tear of some parts or improper assembly and adjustment.

Some abnormal noises can still predict that the engine will be damaged accidentally, so when the engine has abnormal noise, it should be repaired in time to prevent the fault from expanding.

It should be reminded that if it is an abnormal noise in the engine, most of the owners will not be able to solve it by themselves, and it is best to send it to the factory for maintenance.

2. There is abnormal noise in the gearbox.

Symptom description: If there is a "rustle" sound inside the gearbox while the car is driving, and there is no more after pressing the clutch or accelerator, there will be a whistle-like sound when changing gears.

Solution: There are many transmission parts, and the reasons for the sound are more complex, so we should pay attention to whether it is related to a specific speed, such as some planetary teeth that sound at about 50km h.

Whether it is related to certain gears, which is very important for judging the failure of the transmission, if a certain gear sounds, it must be related to the components that affect the transmission of the gear; If all gears sound, it is often a common meshing shaft failure or a lack of oil in the transmission. Whether it is related to specific actions, such as increasing and decreasing gears, starting, rapid acceleration, sharp deceleration, turning, etc., are effective means to judge abnormal noise, among them, changing speed and direction are particularly important for judging the rear axle fault.

If the abnormal noise of the transmission is obvious, it is recommended to send it to a professional repair shop to check the faulty parts, and then replace them.

3. There is abnormal sound of wear.

Symptom description: When driving on the accelerator or brake, there is always some abnormal noise in a certain part of the body, the sound is not loud, and it does not affect normal driving, but it always makes people worry a little about the failure of the body.

Solution: The abnormal noise of the door is mainly caused by the lack of lubrication, but it is necessary to judge whether it is the position of the door hinge or the glass regulator, door lock mechanism, handle mechanism, etc. inside the door. In the case of door hinges or limiters, special door hinges and slide grease can be used, while special door attachment grease is used for lubrication of glass regulators, door locking mechanisms, handle mechanisms, etc. inside the door.

In terms of brand selection, try to choose the commonly used brands in 4S stores, such as German Marty, Kluber, Tiger Head Hotolube, Fox, etc. It is not advisable to use engine oil or ordinary butter, it will freeze in winter, and the harmful smell will affect your health.

Dear, this question is up to me, it takes a little time to type, please be patient, thank you!

Hello, I am your exclusive technician, attentive, careful, attentive to answer your car questions, for you to find the corresponding problem solutions, the car over the bumpy road noise is mainly the suspension problem, knock dong is shock absorption, balance bar boom two problems, this only replace the new shock absorber and balance bar boom, the replacement of ** has a relationship with the model, the ordinary single for a shock absorber to more than 600, a single for a boom more than 200, if it is a chirp is the triangle arm rubber sleeve problem, this replacement of a separate rubber sleeve, You'd better go to the pit station to test check this problem, and it is easy to judge.

1. Constant velocity universal joint abnormal sound: Constant velocity universal joint is commonly known as ball cage, and its main function is to transmit power and complete steering. If the constant velocity universal joint is seriously worn, and the vehicle turns while driving, there is an abnormal sound similar to "rattle and rattle", you only need to confirm which side the abnormal noise is, and then replace the constant velocity universal joint to solve it.

2. Abnormal sound of wheel bearing: The function of wheel bearing is to connect the vehicle and the tire. No matter how big the tire is, the connection between the vehicle and the tire is by a small wheel bearing, if the wheel bearing is damaged, it will cause the tire to deviate, or even the tire to fall off.

When the vehicle is driving, it emits a continuous abnormal sound similar to "buzzing", which is the alarm of the wheel bearing, and the faster the speed, the stronger the sound, if it is slightly damaged, there will be an abnormal sound when the direction is generally tapped.

3. Abnormal sound of exhaust pipe: abnormal sound of exhaust pipe is generally caused by rupture or leakage of exhaust pipe, and there will be "poof" noise after the vehicle starts. It may also be caused by the damage or blockage of the three-way catalytic converter, which is used to reduce the noise while purifying the exhaust gas.

The above is the introduction of the abnormal sound of the car chassis, I hope it will help you.

Because the problem of abnormal noise is relatively complex, it is difficult to judge directly without seeing the actual car. Shock absorbers, balance bar rubber sleeves, balance bar lifting lugs and other components, it is recommended that you check whether the vehicle shock absorber, balance bar rubber sleeve, balance bar lifting lugs and other components are equipped with the bottom guard, the noise caused by the bottom guard, or the tightness of the suspension connection. The above suggestions are for your reference only.

Hope it helps, hope!

There are many causes of abnormal noise, such as shock absorption, ball joints, and tie rods, which can cause abnormal noise, and you need to go to a nearby repair factory to check it.

Hello, it may be caused by loose ground, it is recommended to go to the repair station for inspection.

Do you have an unusual noise when your car crosses a bumpy road? It's a problem here, use this method to make the abnormal noise disappear.

Do you have an unusual noise when your car crosses a bumpy road? It's a problem here, use this method to make the abnormal noise disappear.

Check the chassis, the lower swing arm, the shock absorber top glue, check the method, put the car up, lift the wheels up with your hands to see if there is a big intermittent, and the lower swing arm should be pried with an iron pipe.

**Sounds can you be more detailed.

Hello, what is the car? Sometimes the force is small is not checked, the small boom of the balance bar shakes up and down to see if the ball head is open, or remove it to check, if the rubber sleeve of the balance bar is a little loose, it will also sound, shake the direction machine hard, and some of the direction machine is loose inside. The other thing is to determine whether it is the sound of the chassis or the cabin.

Baojun 560, either the sound in the cabin, or the bottom, the double shock absorber is replaced.