How to Solve the Problem of Abnormal Noise in New Car Brakes?

[BarrettLee]

Solutions for abnormal noise in new car brake discs: 1. If it's a screeching sound, first check if the brake pads are nearly worn out and the alarm piece is making noise. If they are new pads, check for any foreign objects caught between the brake disc and the pad. 2. If it's a dull sound, it's mostly an issue with the brake caliper, such as worn sliding pins or a fallen spring plate. 3. If it's a hissing sound, there could be multiple issues: the caliper, brake disc, or brake pads might be problematic. If the noise persists, first check for any dragging brakes. Poor caliper resetting can cause prolonged friction between the disc and pad, leading to abnormal noise under certain conditions. Then, check for any foreign objects stuck between the pad and disc. If the pads are new, inspect whether the brake disc has grooves, as localized friction can cause noise. If the disc is fine, consider whether the brake pads are too hard or if the noise-damping shims were installed incorrectly.