What s going on with the abnormal noise of the Bora chassis, what is the reason for the abnormal noi

Abnormal chassis noise is generally a suspension system problem, which often occurs in a relatively large vehicle in the car, or a vehicle after an accident has been repaired!

The main reason for the abnormal sound of the chassis is the wear of the rubber sleeve of the suspension system and the wear of the ball head of the steering system, which causes the gap between the holes, or the sound of direct contact between metals.

The abnormal sound of the suspension system will be worn out, often accompanied by a decrease in handling performance, there may be a flat road straight direction will deviate from the feeling of unbalanced vehicle, sharp corners of the body trembling or the direction angle is not the same as before.

The loosening of the ball joint of the steering system is often accompanied by the vibration of the steering wheel at high speeds. Misdirectional.

There's another kind of noise, isn't it something in your trunk? The car was running around in it.

Generally, the abnormal sound of the vehicle suspension system is transmitted to the room with the car body as the medium, and this sound is relatively dull, and it feels that it is within reach but cannot find the direction for a while!

There is also a kind of abnormal noise, which is the abnormal sound caused by the wear of the disc brake mechanism. This kind of abnormal noise is relatively crisp and will not be heard very often! Because it is not directly transmitted to the cabin by the car body, it can only be heard by the reflection of roadside buildings during driving.

Based on my description, you can roughly tell which system is failing.

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.

This specific check is the first problem, and it is generally related to the loosening of parts!

What is the abnormal noise of the car chassis.

There could be several reasons for this:1. Abnormal noise when the vehicle is started is generally a fault of the suspension system.

It can be caused by loose or damaged engine mounts. 2.Abnormal noises when a vehicle is cornering can be a malfunction of the steering system and suspension system.

When the vehicle turns, the tilt of the vehicle causes the suspension system to deform and participate in the movement.

3.Abnormal noise generated by the vehicle driving in good road conditions can be a malfunction of the braking system components. It can be caused by loose and worn brake system components, unrounded brake drums or uneven brake discs.

4.It is also possible that there is a problem with the bearing between the dynamic and static connections of the vehicle, and the hail is matched. If it's a bearing problem, the driver can tell it by braking slightly. If the braking noise does not change when the car is driving at a constant speed, it is a bearing problem.

5.Most of the abnormal noise emitted by vehicles in bad road conditions is a problem with the suspension system. It can also be caused by a loose braking system.

6.Most of the abnormal noise when a vehicle accelerates, accelerates, or stops is caused by the suspension system and braking system. Most of the noise emitted by the suspension system is friction noise.

To reduce these unusual noises, drivers should be careful not to drive rudely, try to avoid bumps, and slow down when the road is bad to avoid wading. This can effectively reduce the abnormal noise of the vehicle chassis.

Causes of abnormal noise on the chassis of Bora cars: 1Corrosion or aging of the rubber sleeve of the balance bar; 2.damaged brake pads; 3.The connection between the suspension and the shock absorber failed; 4.Abnormal noise of wheel bearings.

The new Bora has a squeaky (creaking) sound on the chassis at the beginning of the turn (more obvious) and braking, sometimes in the front chassis and sometimes in the rear chassis; What is the reason for this, does it affect driving safety, some people say that the rubber is loose in that place, which does affect driving comfort.

According to the described situation and combined with the analysis of previous fault cases, the abnormal sound generated during turning may be the pressure bearing sound on the top of the shock absorber, and the squeak sound generated during braking, if it is emitted from the vicinity of the wheel, then it may be caused by the material problem of the brake pad, that is to say, there are hard spots on the surface of the brake pad when the brake is pressed against the brake disc The sound is generated, if it is from the chassis part, Then it is possible that the relevant parts of the suspension system are fixed loose or the assembly is abnormal, but the abnormal noise generated during the driving of this vehicle must be inspected on the spot, and it is necessary to make an accurate judgment only after comprehensive analysis according to the conditions generated by the actual abnormal noise and the nature characteristics and origin of the sound, so it is recommended to carry out on-site test inspection and confirmation of the vehicle according to the above analysis, and this kind of problem is easy to judge and eliminate after the on-site test inspection.

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The abnormal sound of the Volkswagen Bora chassis is due to the low oil pressure or the wear of the hydraulic tappet itself, which causes air to enter the hydraulic tappet, resulting in a "click" sound. There is a relatively large "click" sound when starting the cold car, which is generally caused by the wear, elongation, and loosening of the timing belt or chain, and the chain tensioner loses the tensioning function to cause this sound to appear.

The abnormal sound of the Volkswagen Bora engine is due to the low oil pressure or the wear of the hydraulic tappet itself, which causes air to enter the hydraulic tappet, resulting in a "click" sound. There is a relatively large "click" sound when starting the cold car, which is generally caused by the wear, elongation, and loosening of the timing belt or chain, and the chain tensioner loses the tensioning function to cause this sound to appear.

A 2009 Volkswagen new Bora sedan, when the car is driving on a bumpy road or turning left and right, there is a "click" sound from the chassis. Inspection: Remove the stabilizer bar connector, and the abnormal noise basically disappears during the test.

Analysis: After inspection, it was judged that the abnormal noise was emitted by the rubber sleeve of the stabilizer bar. The function of the stabilizer bar is that when the deformation of the suspension on both sides is unequal and the body is inclined laterally relative to the road surface, one end of the stabilizer bar moves upward, and the other end moves downward, so that it is twisted, and the torsional internal torque generated by the elastic stabilizer bar hinders the deformation of the suspension spring, thereby reducing the lateral tilt and transverse angular vibration of the body.

Elimination: Replace the rubber sleeve of the stabilizer bar, and at the same time treat the opening to make the package tighter, and the abnormal noise disappears during the test.

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.

Before dismantling, it is necessary to carry out an inspection to preliminarily determine the location of the fault, and then the analysis of the abnormal noise characteristics of the engine can basically diagnose the location, cause and degree of abnormal noise, and avoid the blindness of dismantling.

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