The common method is to judge by the sound of the abnormal noise. If it is hissing, it may be because there is something wrong with the running-in of the calipers, brake discs or brake pads. If it is a rattling sound, it should be ABS intervention. If it is a squealing sound, it should be caused by severe wear of the brake pads or foreign matter in the brake disc.
There are generally three reasons for the abnormal sound of car brakes. The first is that the newly replaced brake pads need to be worn in. It may take hundreds of kilometers of driving to break in, so that the brakes will not be too hard. The second is that small sand particles enter between the brake pads and the disc, and occasionally there will be abnormal noise due to friction. If it is relatively small, it should come out after a run, and if the foreign matter is relatively large, it needs to be passed through high pressure. Water gun for rinsing. The third is that the brake system is faulty. The most common is that the fixing screws of the brake disc are lost or damaged. It needs to be re-inspected and repaired and lubricated, otherwise it will also cause abnormal brake noise. Since the brakes of the car will directly affect the safety of driving, once the brakes are abnormal, they need to be repaired in time.
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