What s going on with the creaking under the car when getting in and out of the car

1. When the car is moving, the chassis makes a creaking sound, which is a MacPherson suspension andShock absorbersThe link between the sections is issued. You can park the car in a relatively quiet place and turn off the engine, press the 4 shock absorbers with both hands, and press the body up and down to make the body shake up and down, and listen carefully in the process of shaking, you can hear which part of the sound is coming from.

2. If the sound is not the sound of the friction between the tire and the ground, it can only be the sound caused by the damage of the outer cage. Replace the outer cage to eliminate squeaky noises. If it is the sound of the tire rubbing against the ground, it is recommended to do itWheel alignment

3. The creaking sound of the rear wheel may be from the connection between the rear axle and the shock absorber, first check the screws at the connection between the rear axle and the shock absorber to see if there is any looseness.

Related Notes:

1. Regularly check the oil of each assembly This includes the transmission and braking system.

Power steering system, on the one hand, in strict accordance with the time regulations on the manual, regularly to the special maintenance service station to replenish or replace, on the other hand, but also to check and observe, generally can be checked by the way when the car is refueled, to see whether the oil of each reservoir is between the upper and lower two scale marks.

2. Replace worn brake pads in time.

Brake pads and clutch pads are both consumables.

After a period of use, it will wear out, lose its original function, and if it is not replaced in time, it will easily cause a car accident. Generally, there are corresponding warning indicators on the car, which will send out warning signals in time to remind the user to replace.

3. Selective spraying of chassis protective film Cars often encounter rainy days.

The chassis is easy to rust when it comes into contact with water; When driving on poor roads, the spinning wheels can also blast the gravel up and hit the chassis. Therefore, some manufacturers recommend spraying a protective film on the chassis to improve the anti-rust ability, reduce impact damage, and prolong the life of the chassis.

You hear a squeak at the chassis on a bumpy road, but when you get back to the flat road, the sound disappears, so you can usually leave it alone, but if you still have it on the flat road, you should check it out. Specifically, there are several reasons: 1The contact surface between the brake pad and the brake drum or disc is uneven, 2

Loose sleeve.

This is very simple is that the rubber sleeve of the shock absorber is broken, the original plastic or foam will age and break after a long time, and the rubber sleeve with cow tendon will not sound, if it continues to ring, it can only be replaced with the shock.

Abnormal noise**1: storage compartment. I believe that most car owners do not have the habit of tidying up the storage compartment, the car has not been sorted out for several years The storage compartment must be full of messy items, so that no matter where the car is driving, as long as the engine opens the storage compartment The items in the compartment will follow the engine "beating", and the abnormal noise you hear is likely to be the vibration of the storage compartment.

In fact, it is very simple, everyone only needs to observe that when the speed increases, the louder the sound, it proves that the car transmission system is faulty. The most effective solution is to see if the car tires have a puncture, if there is, it is recommended that you go to a regular car 4S shop for maintenance.

Abnormal noise**3: abnormal noise outside the car. If the abnormal noise heard is from outside the car, we should first look at whether the doors and windows of the car are normal, and at the same time see if there are things in the trunk.

In addition, you should also check whether there is any debris around the wiper, and clean it up in time if there is one, so as not to affect the normal use of the wiper.

You must know that the service life of car pulleys is about eight years, and if you have not replaced the car pulleys for more than eight years, it will make a "cough" sound in the cold winter. If you want to change the pulley, it is recommended that you go to a regular car 4S shop to replace it, and do not do it yourself, otherwise improper operation will cause damage to the car.

The reasons for the rattling of automobile chassis include interference between parts, loose bolts or nuts, failure of the universal joint of the transmission shaft, abnormal noise of the wheel bearing, etc. The chassis has been in a very harsh working environment for a long time.

1.Interference between parts, due to impact or the addition of other equipment, so that two parts affect each other. Solution: The only way to do this is to repair or replace the relevant parts so that there is no interference between the parts.

2.Bolts or nuts are loose, and the bolts are naturally loose when driving on roads with poor road conditions for a long time; Improper disassembly and installation caused damage to the bolts; The tightening torque is not enough or the bolt specification is incorrect. Solution: Tighten or more.

3.Caused by the failure of the universal joint of the transmission shaft, the rupture of the dust cover or the failure to repair the oil leakage in time; Solution: Replace the new transmission shaft universal joint.

4.The abnormal sound caused by the damage of the ball joint, suspension and connection bracket, and the failure caused by the looseness of the ball head or the aging and rupture of the rubber liner after long-term use. Solution: Replace the ball head or support pad with a new one.

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 an easy way to tell:

When there is an abnormal noise, step on the brakes to see if there is still a sound, if it does not sound, it can basically be determined 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. Workaround:

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.

This abnormal noise needs to check whether the chassis has loose and displaced parts, and it is necessary to conduct a comprehensive inspection of the lower limb arm, engine mount, balance bar and shock absorber, etc., this kind of abnormal noise is relatively easy to find, if the abnormal noise often occurs, it is recommended that the vehicle go to the store in time for on-site maintenance, so as not to affect driving safety.

At this time, it is necessary to go to the auto repair shop to check it out. See if any part is loose or cracked. To be on the safe side, it is advisable to check it out early.

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.

Due to the abnormal contact and friction between the brake disc and the brake pad, according to the analysis of previous maintenance cases, most of the cases are caused by the following reasons, one may be due to the phenomenon of poor return of the brake cylinder, resulting in the brake disc and the brake pad are always in slight friction, and the other may be caused by the hard spots on the surface of the brake pad or the foreign matter such as fine sand particles between the brake disc and the brake pad.

Maintenance suggestions: It is recommended to go to a special repair shop to check whether the brake cylinder has a poor return, or to remove the brake pads and polish the friction surface, which will generally be significantly improved.

X0D X0A It is recommended to go to a repair shop to check whether the brake cylinder has a bad return, or to remove the brake pads and polish the friction surface, which will generally be significantly improved.

If the car squeaks while driving slowly, it is most likely from the suspension. Automotive suspension includes connecting rods, springs, shock absorbers, and stabilizer bars. If there is an abnormality in one of the parts, such as a loose bolt, it may make an abnormal noise due to shaking.

1.If it is discharged from the car, it is necessary to check whether the airbag spring under the steering wheel and the cross joint in the steering column are normal. The degree of wear or failure of these two parts will lead to what you call failure.

If it is an abnormal noise of the outer version of the car, it is necessary to check whether the plane bearings above the lower part of the first two shock absorbers are worn. Check whether the ball joint of the steering machine is loose. The rack in the steering machine is worn.

The failure of these three parts will lead to what you call failure. 2.If you press the brakes lightly and find that the abnormal noise increases, you can confirm that there is a problem with the braking system, such as the brake pads are too thin, the brake disc and brake pads are worn unevenly, and the brake cylinder, master cylinder, brake caliper fails, etc.

It can cause abnormal noises in the braking system, mainly sharp and continuous sounds. If the engine belt is loose, it will squeak. At this point, we can try to grip the belt with our fingers and twist it.

Note that the operation should be done after the engine has cooled down. The twist angle should generally be less than 90 degrees, otherwise the tightness should be adjusted. If there are rubber parts, the parts may age.

One thing to note here is the engine support rubber pads. If it ages, hardens, or breaks, it can cause the vehicle to vibrate, the steering wheel to shake, and make excessive noise.