Abnormal sound of common faults of brake pads
calipers
The brake pads are installed on the brake calipers. If the components of the calipers are loose, the guide rails are corroded, and the guide pins are poorly lubricated, etc., abnormal noise may occur.
Loose components: There will be vibration during the braking process, and the vibration will cause vibration of other parts. If the components are loose, it will cause the resonance of the caliper components, which will cause noise.
Corrosion of the guide rail: The brake pads cannot move normally in the guide rail, which will cause abnormal noise when the brake is stepped on, and may also cause partial wear of the brake pads. The partial wear will cause the contact area to decrease, and the area reduction will cause Causes an increase in the frequency of friction vibration, which may cause abnormal noise
Poor lubrication of the guide pin: the guide rail is corroded, which may cause eccentric wear of the brake pads or dragging and eccentric wear will cause abnormal noise. If you can't stop the car, of course the brake pads will wear faster.
suspension
Loose parts such as the suspension ball head or dry grease will cause abnormal noise when braking or crossing potholes. Because the load carried by the suspension is relatively large during braking and crossing potholes, abnormal noises may occur at this time. .
Install
If the brake pads are not installed in place or installed obliquely, the contact area between the brake pads and the brake disc will be reduced when the brake pads are working, and the reduced area will increase the frequency of friction vibration, which may cause abnormal noise. occur.
use
If the brake pads are used excessively, the alarm pad will be triggered, or the back plate of the brake pads will be worn, which will cause abnormal noise.
appendix
Brake pads, brake calipers, etc. have their own accessories. If they are not installed properly or are missing during installation, abnormal noises may occur or interference with other parts may cause abnormal noises. If no accessories are installed, parts will become loose. This may cause abnormal noise, such as the sound of brake pad ears hitting calipers
