Is it normal for the brakes to sound as soon as they are pressed?

There are several reasons for the abnormal brake noise:

1. The brake disc is scratched and deformed;

2. There are foreign objects and iron filings between the brake pads and the brake disc;

3. The brake shoe is too tight;

Solution: 1. If the brake disc is scratched and deformed, replace the brake disc directly;

2. Remove foreign objects and iron filings between brake pads and brake discs;

3. Adjust the brake shoe clearance;

Maybe there's something wrong with the way you drive. Problem 1, vehicle speed; Question 2, the strength of the brakes. Got an abs put? It may have something to do with ABS. Then there's the weather. It can be too cold or too hot

It's not a problem with brake pads, it's not a big problem, many cars that don't have ABS will have this sound after driving tens of thousands of kilometers, the most typical example is the bus, you can pay attention to it, the sound is louder. Also, when it is just dry after the rain, this sound will be very loud. As long as you think your braking performance is okay, don't worry, my Dongfeng Fengxing has been "here" for more than 2 years, and the front brake disc and rear brake pads have been replaced and still have this sound, which is not a problem.

That's right, it's the piece that's wrong.

It's only 20,000 kilometers, and the brake pads shouldn't be a problem. I think you should do a four-wheel alignment.

<> there is always a clicking sound when you hit the brakes, why is that?

You're probably talking about a problem with the brake pads. It is recommended to go to 4S for a four-wheel maintenance inspection. The brake system mainly listens to the sound source.

Check the booster pump for lack of oil. Because electric booster pumps work even without a lot of oil. Whether the cage is worn or not.

There is a lot of abnormal noise during starting and braking, and occasionally noise when cornering, and you can check whether the engine rubber feet are aged or damaged. My bangs don't age. At first, I thought it was a stadium, but after careful inspection, it was found that the engine base pad was broken.

Rust on brake discs or brake pads: After parking for a long time, especially when the weather is wet or rainy, there will be a certain degree of rust or dirt on the brake discs or brake pads, which can be solved after driving for a while. You can also apply butter or special lubricants to the connection between the brake pads and the brake caliper.

New brake pads: New cars make a similar noise when they brake. If your car is new or has just been replaced with new brakes, the new brakes and brake discs need a break-in process.

This abnormal noise is completely normal when braking.

When the brakes make abnormal noise, the brake pads should be checked at the first time to see if they run out or if there are foreign objects. If the brake pads run out, they should be replaced immediately. If there are any foreign objects, the brake pads should be removed and then installed.

This happens after the car wash. The main reason is that the brake pads are wet, and impurities will get between the brake discs and brake pads, which will also produce noise. However, in this case, it is easy to deal with, just step on it a few times and let it dry.

The second is the cause of the failure of the brake system itself, mainly because of whether there are foreign objects or hard spots on the ABS working or brake pads.

The brake discs are badly worn. If inferior brake pads are used, or if hard foreign objects get between the brake pads and the brake disc, the brake disc will wear abnormally. If the brake disc is too worn, we squeak when we brake.

Brake pad alert. Many people don't know how many kilometers of brake pads to change. In fact, there is no mandatory requirement for how many kilometers to replace, as long as it is thin, it can be replaced.

Some brake pads have electronic alarms, and some low-end car alarm panels. If the wear of the brake pads reaches the warning line, there will be a squeaky alarm sound, so it should be replaced in time.

<> there is always a clicking sound when you hit the brakes, why is that? Inferior and excellent brake film was used, brakes, discs were badly worn, and brake discs or brake discs were rusted.

Many veteran drivers who have been driving for many years may encounter this situation, that is, they will hear a squeaky noise when they apply the brakes. This is rarely the case in new cars, and this noise is usually seen on some older cars that have been in operation for several years. So what is the reason?

Here, the old car mechanic will explain it to you.

1.Use inferior and excellent brake films. If we use inferior or good brake chips, the brake chips will squeak when we hit the brake disc.

Therefore, when we replace the brake film, we must use high-quality brake film.

2.The brake discs are badly worn. If inferior brake pads are used, or if hard foreign objects get between the brake pads and the brake pads, they will cause abnormal wear of the brake pads. If the brake pads are worn too badly, there will be a squeak when stepped on the brakes.

3.Rust on the brake disc or brake disc: After parking for a long time, especially when the weather is wet or rainy, there will be a certain degree of rust or dirt on the brake disc or brake disc, which can be solved after driving for a period of time.

It is also possible to apply butter or special lubricant to the junction of the brake pad and brake caliper.

4.The braking system is a maintenance item that many car owners will basically ignore. The maintenance of the braking system is not only about changing the brake fluid, but also about the disassembly of the individual brake cylinders, as well as the disassembly and lubrication of the brake cylinder "guide pins" to avoid clogging due to excessive wear of the brake cylinder due to dirt and lack of lubrication.

In most cases, when changing the brake oil or brake pads, a maintenance should be performed.

5.The mismatch of the brake chip may be due to the upside-down installation of the brake chip; or install components that are less equipped with screws; or the brake plate is small and does not match the friction; Or with cheap brake chips, etc.

6.When stepping on the brakes to make abnormal noise, check the brake chip as soon as possible to see if it runs out or has foreign objects. If the brake pad runs out, replace it immediately, and if there is a foreign object, take the brake pad out and reinstall it.

1. The oil quality is too dirty, which leads to the blockage of the brake oil pipe and causes the pressure of the master cylinder to be too large, and after a long time, the brake is ineffective and the oil pump is easily damaged.

2. The oil quality is too low or the time is too long, which leads to the corrosion of the sealing bowl in the master cylinder, which will cause poor sealing after a long time, and cannot seal the oil without oil pressure.

3. Frequent lack of oil or dry grinding will cause wear and tear of leather bowls.

4. Frequent use of brakes will also be unfavorable to brakes.

It may be because there is a problem with the brake pads, it may be that there are small stones in the brake pads, and the anti-lock braking system is activated, so there will be a clicking sound.

It may be that your brakes are broken, or the parts are rusty, or there are some foreign objects, or there may be a problem with the brake disc or the brake pad.

It is very likely that there is a problem with the brake pads, and at this time you must go to the 4S shop for maintenance, and it may be that the booster pump is short of oil.

Why does the car creak when the brakes are applied and released?

Hello, is the sound coming from under your feet, can it be that there is a lack of oil on the pedals?

Hello step on the brake noise, mainly check whether the gap between the brake pad and the brake cylinder is too large. Check whether the ball joint of the lower arm of the chassis and the rubber sleeve are loose.

Hello! That's normal, because your car is equipped with ABS anti-lock braking, when you press the brakes, the computer will control the speed of the 4 tires to keep the balance, so there will be a gurgling sound, and the brake pedal will also feel it. Here's how to reproduce:

When the anti-lock braking system is in effect, the friction between the wheel and the road surface is rolling friction, which will make full use of the maximum adhesion between the wheel and the road surface for braking, thereby improving the braking deceleration degree, shortening the braking distance, but the most important thing is to ensure the directional stability of the car.

When ABS works, it is equivalent to a point brake at a high frequency, so when you step on the brake pedal in an emergency, you will definitely feel that the brake pedal is vibrating, and you will also hear the "click" sound from the brake master cylinder, which is the normal operation of ABS. Since the brake master cylinder is constantly adjusting the brake pressure, there is a continuous feedback force to the brake pedal.

The main reasons are as follows:1The run-in of the new car, in which the run-in of the brake pads is a very important link, usually after running hundreds of kilometers, you can feel that the brakes will be more comfortable; 2.

The new brake pads also need to be run in to better combine with the old plate, when you first replace it, you will feel that the brakes are very hard, and you usually need to drive hundreds of kilometers to feel better; 3.During the vehicle driving, there may be very fine sand particles into the middle of the sheet and the plate, and sometimes there will be abnormal noise due to friction, which generally does not need to be maintained, just run to make the small sand particles fall out; 4.For those who do not have a good run-in and abnormal noise, some owners simply run up and slam on the brakes, so that the brakes can be run in in a short time, but this will make the brake pads wear more severely, that is, it is equivalent to reducing the service life of the brake pads, so it is recommended that you still run for a period of time to observe, do not artificially force the wear of the brake pads; 5.

Loss or damage of the fixing screws of the brake disc will also cause abnormal brake noise; 6.The brake system is faulty, which needs to be inspected and repaired.

What causes a car to squeak when it hits the brakes?

Are your brake pads new or old? The principle is that when you step lightly, the contact surface between the brake pad and the brake disc is only a small area, and the contact area of the heavy pedal will not. The old disc is because the brake pads are seriously worn, resulting in uniform and inconsistent wear, and the front bump is lightly stepped on to contact the brake disc first.

The new disc is different, if the new disc is driven for dozens of kilometers, it is because the size of the new disc is too small, to put it bluntly, the size is not the right version, and the brake disc is in contact with the brake disc first. The solution is to get something under the spacer and put it on the pad. The cloth or 3m electrical rubber pad is underneath, so that the brake pads can not be too close or too loose, and the abnormal noise can be easily solved.

What should I do if there is a rattling sound or abnormal noise when I step on the brakes?

The mechanic will put the brake pads on the deviation, which can be removed and reinstalled.

The size of the friction block of the same model brake pad may not be consistent, especially in width, and their dimensional deviation can reach up to 3 mm between manufacturers. Therefore, although the surface of the brake disc looks relatively smooth, the large brake pads also reverberate when they are installed on the small brake pads, and they will not sound after driving for a period of time.

After driving for a while, there is a sudden noise, which is due to the fact that hard objects on the road, such as gravel and iron scraps, are caught on the brake pads when the brakes are pressed. This condition is not only loud, but also prone to injury. However, when the inspection is removed, sometimes the foreign body has come off or worn off.

Treatment: Disc, if there is a foreign object on the **, it should be removed before installation. In this case, it is easy to see that the injured disc is only one of the four surfaces of the injured disc.

However, if the reason is not explained to the driver, it is easy to incur a claim.

It rings after driving for a while. But instead of a squeak, it rattles, which may be caused by a loose attachment on the brake pads. Treatment: Re-tighten or replace with a new piece.

Buy a car, use a car, maintain a car, repair a car, and listen to Chen Gong talk about cars.

Hello! That's normal, because your car is equipped with ABS anti-lock braking, when you press the brakes, the computer will control the speed of the 4 tires to keep the balance, so there will be a gurgling sound, and the brake pedal will also feel it. Here's how to reproduce:

When the anti-lock braking system is in effect, the friction between the wheel and the road surface is rolling friction, which will make full use of the maximum adhesion between the wheel and the road surface for braking, thereby improving the braking deceleration degree, shortening the braking distance, but the most important thing is to ensure the directional stability of the car.

When ABS works, it is equivalent to a point brake at a high frequency, so when you step on the brake pedal in an emergency, you will definitely feel that the brake pedal is vibrating, and you will also hear the "click" sound from the brake master cylinder, which is the normal operation of ABS. Since the brake master cylinder is constantly adjusting the brake pressure, there is a continuous feedback force to the brake pedal.

Why does the brake rattle: Recently, when the brakes are applied, the chassis has a rattling, rattling sound. Comes and goes.

Do you have this situation, friends, what is the reason To add, I thought it was the sound of something hitting the trunk, and the fire extinguisher in the trunk was also fixed. There's nothing left. ABS will not turn on the light when it works, which ABS light is faulty to turn on.

Speaking of tire slippage, it is not necessarily icy on the road, some special circumstances such as tar is too smooth will also slip, I have an intersection on the way to work 30 yards turn will slip to trigger ABS, the foot and the whole vehicle feel is clucking.

The relationship between the abnormal sound of stepping on the brake and the engine speed may also be the rust of the brake disc or brake pad, excessive wear of the brake disc and brake pad, assembly problems, etc. Abnormal brake noise must be a headache for many car owners, such as whether it is a new car, or a vehicle that has traveled tens of thousands or even hundreds of thousands of kilometers, the problem of abnormal brake noise may occur at any time, let's take a look at the specifics.

The presence of most common squeaks and squeaks in the engine depends on the state of the engine's transfer volume. Squeak and squeak are only present at idle or low speeds. The reasons for the sound are:

The gap between the piston and the cylinder wall is too large; The piston pin assembly is too tight or the connecting rod bearing is assembled too tightly; The gap between the tappet and its guide hole is too large; The profile of the valve cam is worn; Sometimes, the starter grip comes loose and the pulley makes a sound (noticeable when the speed changes).

Rust of brake disc or brake pad, when parking for a long time, especially after humid climate or rain, there will be a certain amount of rust or dirt on the brake disc or brake pad, which can be solved by opening for a while, or you can apply butter or special lubricating oil to the connection between the brake pad and the brake caliper.

If your car is a new car or has just been replaced with new brake pads, then the new brake pads and brake discs need a run-in process, when the brakes are stepped on, this abnormal sound will be emitted, which is completely normal, but this noise does not disappear after a period of time, there is a problem.

Excessive wear of brake discs and brake pads, brake discs and brake pads are high consumables, each time the brake two parts have to be rubbed, and there will naturally be wear and tear in the long run, and when the wear is excessive, there will naturally be abnormal noise, so it should be checked and replaced regularly. Usually the replacement cycle of brake pads is 6-80,000 km, while the brake disc is 10-120,000 km.

Assembly problems, if the brake pads are installed in the opposite or the model is not right, then there will also be abnormal noise, you can go to the brake pads to reinstall it, when the car mainly installs the brake pads, it is necessary to go to a professional auto repair shop to carry out the operation, especially in the roadside stall to replace the brake pads of the owner, you should pay more attention to this. (Photo by Chen Yalan of Pacific Automobile Network).