What happens when the brakes make abnormal noises? What is the reason for the abnormal noise when br

There are 6 reasons for abnormal noise when braking:

1. Inferior quality brake pads: brake pads made of hard materials will hear abnormal noises when braking, and will also damage the brake discs. You need to go to a regular 4S shop to replace the original brake pads.

2. Foreign objects enter the brake disc: when driving in complex road conditions, the wheels are easy to throw up stones or other foreign objects. The disc brake is different from the drum brake, the stone is opened between the brake pad and the brake disc, and the abnormal sound occurs when braking. Foreign objects need to be cleaned up in a timely manner.

3. Serious wear of the brake disc: when the brake pad rubs against the uneven brake disc, it will also make abnormal noise. Replace the brake disc in time.

4. Serious wear of brake pads: When the car is driven for a certain time, the brake pads will become thinner under long-term friction. Brake pads that are too thin not only lead to a decrease in braking effect, but also cause abnormal braking noise due to the hardening of the material. Replace the brake pads in time.

5. Rusty brake discs: Perennial wind and rain, brake discs may also rust. After pressing the brakes a few more times, the rusty layer on the brake disc will be worn off.

6. Improper assembly: the accessories are not installed firmly or are not installed properly.

1.There is a clicking sound when braking suddenly. This is to prevent lock-in ABS pumps to intervene to control brake oil pressure changes back and forth. This is normal sound. In addition to the click, it often manifests as a brake pedal vibration.

2.When the car starts to refuel, the brakes click. This is normal. This is mainly the case after parking on rainy days or for long periods of time. This is mainly due to the fact that the brake pads are attached to the brake disc. A few stomps can eliminate the malfunction.

3.When the brakes are applied in the reversing state, there is an abnormal sound. In this case, the reverse vehicle changes its direction of movement, and the engine as a whole will show signs of forward and backward tilt, and the engine vibration will be reduced when the brakes are pressed.

If the lower guard plate is not installed properly or deformed in a collision, it will be in direct contact with the exhaust pipe and a sound will occur.

4.Squeak when braking. This kind of situation needs to be noted, and there are generally two situations.

One is that the brake pads are worn to the limit, and the alarm limit pads on the brake pads interfere with the brake discs. Another possibility is that foreign objects such as stones or powder particles from the wear of the friction pads fly into the brake pads and rub against the brake disc during driving. In this case, we can pull over first, check the brake disc for foreign objects, wait three to five minutes, and rinse it with water.

If you drive again to see if there is a sound, you can press the brakes several times in a row.

5.The brakes of the shock absorber belt make a clicking sound. This sound is due to the excessive gap between the brake cylinder pin and the caliper.

In addition to piggybacking on the brakes, there is also a phenomenon where the vehicle turns off and there is a click when getting out of the car. To determine whether this is the fault, we can add lubricating grease to the sub-pump pin to compensate for the gap between the two, and the abnormal noise will disappear. But it didn't take long for the glitch to reappear.

So if you can't stand it, it is recommended to replace it directly.

Riders can take a look from the following aspects: First, it may be that the brake disc and the steel baffle are mixed with stones, as long as you step on the brakes deeply, the brake disc will expand when heated, resulting in a smaller gap between the brake disc and the steel baffle, coupled with the friction of the stones, the screaming noise is more obvious. 2. Common abnormal noise of brake pads (1) The brake pads make a screaming and piercing sound. This kind of harsh.

The possible causes of abnormal noise during braking are as follows: 1. Wear of brake pads or brake discs. 2. There is a foreign object between the brake pad and the brake disc.

3. Assembly problems of brake pads or brake calipers. 4. The return piston of the brake cylinder is too dirty. Extensions:

1. Downhill can not be neutral slide by brake control, many people downhill may choose to slide in neutral gear, with brakes to control the trembling system, feel that this is so fuel-efficient, in fact, this is a misunderstanding of the hole. Coasting downhill in neutral gear and using the brake to control the distance of the car is likely to cause the brake system to overheat and malfunction for a long time, which will lead to accidents. 2. When encountering downhill slopes, you should hang the appropriate gear according to the speed of the vehicle, brake through the engine, and occasionally supplement the brake, which is both safe and respectful to prolong the life of the brake.

Causes and treatment of abnormal brake noise: 1. New cars, brake discs are new, therefore, they need to be grinded open, at this time there will be abnormal brake noise, abnormal noise is divided into vibration friction and sharp silk sound, but it will disappear after hundreds of kilometers, treatment: as long as the new car has abnormal brake noise, don't worry about it, don't deviate, the emergency braking vehicle is not shaking, it's okay if you don't deviate, 2. Wind and sand weather or dust.