Whether it is a new car that has just hit the road, 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, especially the kind of sharp “squeaking” sound that is unbearable. Indeed, the brake abnormal sound is not all fault, may also be affected by the use of the environment, the use of habits and the quality of the car brake pad itself has a certain relationship, does not affect the performance of the brake; Of course, abnormal noise may also mean that brake pad wear has reached its limit. So what causes the abnormal braking sound?
1, the brake disc will produce abnormal noise during running-in:
The friction surface between the lost parts generated by friction braking force has not reached a complete match state, so there will be a certain brake abnormal noise during braking. The abnormal sound generated during the run-in period, we only need to maintain normal use, the abnormal sound will gradually disappear with the run-in period between the brake discs, and the braking force will also be improved without separate processing.
2, brake pad metal hard point will produce abnormal sound:
Due to the influence of the metal material composition and artifact control of such brake pads, there may be some metal particles with higher hardness in the brake pads, and when these hard metal particles rub with the brake disc, there will be our common very sharp brake abnormal sound.
If there are other metal particles in the brake pads, the brake sound may also be abnormal in use, and the brake pad brand manufacturer recommends that you choose a higher quality brake pad replacement and upgrade.
3, when the brake pad is seriously lost, the alarm will emit a sharp abnormal sound prompting replacement:
Brake pads are worn as parts of the vehicle, therefore, the vehicle brake system has its own set of alarm system to remind the owner to replace the brake pads, the alarm alarm method will emit sharp abnormal sound (alarm sound) in the case of serious wear of the brake pads.
4, brake disc wear serious may also appear abnormal sound:
When the brake disc is seriously worn, when there is no friction between the brake disc and the outer edge of the brake pad, it will become a circle of relative friction surface, then if the brake pad corner and the outer edge of the brake disc have raised friction, there may be abnormal sound.
5. There is a foreign body between the brake pad and the brake pad:
There is a foreign body between the brake pad and the brake disc is one of the common reasons for abnormal braking sound. During driving, foreign objects may enter the brakes and make a hissing sound.
6. Brake pad installation problem:
After the brake pad manufacturer installs the brake pad, it is necessary to adjust the caliper. The brake pad and caliper assembly are too tight, and the brake pad assembly is incorrect, which will cause abnormal braking sound.
7. Poor return of brake pump:
Brake guide pin rusting or lubricating oil deterioration can lead to poor brake pump reflux and abnormal sound.
8. Sometimes the reverse brake makes an abnormal sound:
When the friction of the particles raised in the middle of the inverted old disk changes, it will make a jingling sound, which is also caused by the uneven disk.
9. ABS braking anti-lock braking system start:
The “gurgling” sound during emergency braking, or the continuous “thumping” sound of the brake pedal, as well as the phenomenon of the brake pedal vibration and bounce, indicates that the ABS(anti-lock braking system) is activated normally.
10, the product formula or processing technology is not correct, resulting in unstable product performance and loud noise.
Post time: Aug-02-2024