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What are the causes of brake pad noise?

2 Answers

VanMakayla

07/29/25 4:04am

The causes of brake pad noise are: 1. Insufficient contact surface, leading to increased pressure per unit area of the brake pad; 2. Emergency braking causing changes in the performance of the friction material; 3. Rust on the brake caliper; 4. Slow return of the brake master cylinder. The solutions for brake pad noise are: 1. Replace the brake pads; 2. Secure the brake caliper and spring; 3. Replace the brake disc. The steps for replacing brake pads are: 1. Remove the wheel of the brake; 2. Use a wrench to remove the brake caliper bolts and take out the brake pads; 3. Clean the debris from the brake caliper with a cloth; 4. Install the new brake pads onto the brake caliper; 5. Tighten the guide bolts and check the braking effect.

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JackLee

08/12/25 7:49am

I've also encountered squeaky brake pads while driving before. It's usually caused by small stones getting stuck between the brake disc and pad, creating that metallic scraping sound when braking. Another common situation is when the brake pads are worn down to the warning indicator, and that metal piece makes a particularly sharp noise when contacting the disc. Newly replaced brake pads might also squeak for a few days as the surfaces break in. Rust on brake discs after rain can cause a brief squeal too. If the noise persists continuously, you should consider possible issues like warped brake discs or improper installation. The most dangerous scenario is completely worn-through brake pads - not only is it hazardous but can also damage the brake discs. Any persistent abnormal noise should be checked immediately.

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What are the reasons for the Cayenne tire pressure warning?

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