What Causes the Abnormal Noise When Braking?

2 Answers
MacLeo
07/25/25 5:58am
The reasons for abnormal noise when braking include: using inferior or overly hard brake pads, severe wear of the brake disc, and brake pad warning. The details are as follows: Using inferior or overly hard brake pads: If inferior or overly hard brake pads are used, they will produce a squeaking sound when rubbing against the brake disc during braking. Therefore, it is essential to use high-quality brake pads when replacing them. Severe wear of the brake disc: Using inferior brake pads or having hard foreign objects between the brake pad and the brake disc can cause abnormal wear of the brake disc. If the brake disc is excessively worn, it will also produce a squeaking sound when braking. Brake pad warning: There is no strict rule on how many kilometers brake pads should be replaced; they should be replaced once they become thin. Some brake pads have electronic warnings, while some low-end cars use warning strips. If the wear of the brake pads reaches the warning line, a squeaking alarm sound will be emitted, indicating that they should be replaced promptly.
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McHadley
08/10/25 5:59pm
As a veteran driver with over 20 years of experience, I've encountered brake squealing issues many times. The most common cause is worn-out brake pads where the metal backing plate scrapes against the rotor. Another possibility is rust or unevenness on the brake discs - driving on gravel roads can make it worse when small stones get lodged in. Loose brake calipers or dried-up lubricant can also create strange noises. Safety comes first - if the noise persists, don't delay getting it checked at a professional shop, or you risk sudden brake failure. Occasional squeaking during humid weather or cold starts is normal, but persistent noise requires attention. I personally inspect my brake system every six months, replacing parts promptly. Good driving habits extend component life and save money - this isn't something to take lightly.
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