Why Does the Car Brake Squeak on Rainy Days?
1 Answers
Car brake squeaking on rainy days may be caused by fine sand adhering to the brake disc, brake system failure, or brake pad wear. Fine sand adhering to the brake disc: Water can carry fine sand that sticks to the brake disc. In humid weather or when there is a large temperature difference between day and night, condensation or rain can cause the brake disc to rust, forming tiny particles. Car brake pads can be categorized as hard or soft. Hard pads are more wear-resistant, but if there are tiny particles between the hard brake pad and the gray cast iron brake disc, it can produce a sharp squeaking sound. The noise will disappear once the particles are worn away by braking. Brake system failure: If the brake system malfunctions, it is necessary to visit a 4S shop or repair shop for inspection and maintenance. Brake pad wear: When the brake pad wears down to the wear indicator. If a hissing sound occurs every time you brake for several consecutive days, and the sound becomes louder and more frequent, it indicates that the brake pad is nearly worn out. Brake pads usually have some hard metal shavings embedded at the bottom intentionally. When these shavings are exposed, they produce a metallic hissing sound, alerting the driver that the brake pads are severely worn. At this point, the brake pads should be replaced.
