What Causes Brake Pad Noise?
2 Answers
During vehicle operation, the causes of brake pad noise are as follows: Use of inferior or overly hard brake pads: If inferior or overly hard brake pads are used, when the brakes are applied, the friction between the brake pads and the brake discs can produce a squeaking sound. Therefore, it is essential to use high-quality brake pads when replacing them. Presence of sand or foreign objects between the brake pads and discs: During normal driving, it is inevitable to encounter some complex road conditions. Due to the unique design of disc brakes, some sand and foreign objects may get between the brake pads and discs, which can also cause noise when braking.
Last time I encountered squeaky brakes, I specifically asked the repair shop master. He said common causes are brake pads worn too thin, where the metal warning indicator starts scraping against the brake disc. It could also be poor-quality brake pads containing too many metal particles. Another possibility is after rainy days when the brake disc rusts heavily, causing squeaking noises when first driving. Getting small stones stuck is the most annoying - the sound is particularly harsh. The worst scenario is when the brake caliper doesn't retract properly, causing the wheel to drag and increasing fuel consumption. Now whenever I hear abnormal brake noises, I get it checked immediately - safety is no small matter. I recommend everyone not delay too long - repairs cost just a few hundred yuan, but the losses could be huge if something really goes wrong.
