What should I do if the chassis of my car keeps making noises?

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.

When the chassis of the car rattles, the first thing to determine is which part is making the abnormal noise. The more common reasons are as follows: 1. There is a problem with the brake pad. 2. There is a problem with the rubber sleeve of the balance bar. 3. There is a problem with the connection between the suspension and the shock absorber.

There is a problem with the brake pads, there is a simple way to judge: when there is an abnormal noise, step on the brakes to see if there is still a sound, if it does not sound, you can basically determine that there is a problem with the brake pads.

There is a problem with the brake pads, which may be due to foreign objects between the brake pads and the brake disc, deformed brake pads, etc. Solution: Replace the brake pads.

If the vehicle makes a rattling noise when passing over uneven roads, it is likely that there is a problem with the rubber sleeve of the balance bar. The balance bar is also called the anti-roll bar and the stabilizer bar, and there are two buckles on the balance bar, and the buckle is the rubber sleeve of the balance bar.

Due to aging, coupled with the erosion of soil and dust, the rubber sleeve of the balance bar is prone to abnormal noise.

In addition, such as abnormal sound of wheel bearings, aging of shock absorbing pressure bearings, deformation of shock absorbing springs or abnormal wear of some parts, etc., will cause the car chassis to rattle and rattle.

Since you can't see the actual car, you can't make an accurate judgment. As for the specific reason, it is recommended to go to a 4S shop or a professional auto repair shop in time to let the maintenance master check it. Only by identifying what the problem is, can the symptoms be fixed.

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 for adopting.

Hello, the abnormal sound of the chassis is generally caused by the failure of the chassis suspension components. For example: aging of rubber sleeves for the upper and lower arms of the chassis, oil leakage of shock absorbers, abnormal noise of tire bearings, abnormal braking, abnormal installation of chassis components, etc.

There are many reasons for this, such as loose connections, deformation, wear, foreign objects, and so on.

Reasons for the squeaking of the car chassis: 1. If the vehicle squeaks as soon as the brakes are stepped on, it means that the brake pads are worn to the limit and have begun to grind to the brake disc; 2. The car belt is loose; 3. If it only squeaks when stepping on the clutch and the sound of releasing the clutch disappears, it means that the vehicle separation bearing is damaged;

If there is an abnormal sound in the chassis of the car, it may be caused by the fault of the wheel bearing of the vehicle, if it is this kind of failure, it is easy to make abnormal noise in the chassis when the vehicle is driving, and the wheel bearing needs to be checked, and the fault must be repaired or the corresponding components must be replaced in time.

2. There is an abnormal sound on the chassis of the car, if it occurs when driving on a smooth road, it may be related to the failure of the vehicle's braking system, and the braking system can be checked.

3. When the steering system of the vehicle fails, it is easy to cause the sound of abnormal noise on the chassis of the vehicle, in this case, it is necessary to check the steering system and deal with the fault in time.

4. There is abnormal noise in the chassis of the vehicle, which may also be caused by loose or damaged engine mounts, and the chassis is prone to abnormal noise when starting. If this is caused by this reason, the cause of the failure should also be checked and treated, and if the engine bracket is damaged, it should also be replaced with a new one in time. Causes of abnormal noise in the chassis of the car:

1. The abnormal noise emitted by the vehicle when starting is generally a fault of the suspension system, which may be caused by loose or damaged engine mounts. 2. The abnormal noise emitted by the vehicle when steering may be a fault of the steering system and suspension system. As the vehicle is steering, the suspension system is also involved in the movement due to the tilt of the vehicle that deforms the suspension system.

3. The abnormal noise emitted by the vehicle when the road conditions are good may be the fault of the braking system components. It can be caused by loose brake system components, worn out, brake drum loss or uneven brake disc plane. 4. It may also be that there is a problem with the bearing between the dynamic and static connection of the vehicle.

If it is a bearing problem, the driver can distinguish it with a little brake, if the vehicle does not change the brake sound when moving at a constant speed, it is a problem with the bearing. 5. Most of the abnormal noises that occur when the vehicle is driving in bad road conditions are the problems of the suspension system. It can also be caused by a loose braking system.

6. Most of the abnormal noises emitted when the vehicle accelerates, decelerates or stops are caused by the suspension system and braking system. The suspension system emits more friction sounds, to reduce these abnormal noises, the driver needs to pay attention not to drive roughly, try to avoid bumps, when encountering bad road conditions, need to slow down, avoid wading, so as to effectively reduce the abnormal noise of the vehicle chassis.

What is the reason for the noise in the chassis of the car? Reasons for the sound of the chassis of the car: 1. There is a problem with the rubber sleeve of the balance bar:

The phenomenon is that the chassis will have abnormal noise when the vehicle passes through the uneven road surface, due to the erosion of soil and dust, the rubber sleeve of the balance bar becomes harder and harder after aging, resulting in the inconsistent height of the left and right wheels of the vehicle. 2. There is a problem with the brake pads: the phenomenon is that there is an abnormal sound under the front wheel, especially when the steering wheel is obviously abnormal, and the brakes are stepped on when the sound is sounded. 3. There is a problem with the connection between the suspension and the shock absorber: if the chassis makes a creaking sound when the car is driving, it is likely to be the reason, and the judgment method is to press the top of the suspension part of the body after the vehicle is turned off, so that the body shakes up and down, and at the same time listen carefully to the abnormal sound, you can judge which part of the problem occurs; 4. There are also abnormal noise of wheel bearings, deformation of shock absorbing springs, aging or abnormal wear of shock absorbing pressure bearings, etc., which will lead to abnormal noise of automobile chassis.

The reasons for the sound of the chassis of the car: 1. There is a problem with the rubber sleeve of the balance bar: the phenomenon is that the chassis will have abnormal noise when the vehicle passes through the uneven road surface, and due to the erosion of soil and dust, the rubber sleeve of the balance bar will become harder and harder after aging, resulting in the inconsistent height of the left and right wheels of the vehicle and the abnormal sound; 2. There is a problem with the brake pads

The phenomenon is that there is an abnormal sound under the front wheel, especially when the steering wheel is obviously abnormal, and the brakes are stepped on when the sound is sounded, if it does not sound, it can be determined that there is a problem with the brake pads; 3. There is a problem with the connection between the suspension and the shock absorber: if the chassis makes a creaking sound when the car is driving, it is likely to be the reason, and the judgment method is to press the top of the suspension part of the body after the vehicle is turned off, so that the body shakes up and down, and at the same time listen carefully to the abnormal sound, you can judge which part of the problem occurs; 4. There are also abnormal noise of wheel bearings, deformation of shock absorbing springs, aging or abnormal wear of shock absorbing pressure bearings, etc., which will lead to abnormal noise of automobile chassis.