How to Solve the Problem of Abnormal Brake Noise After a Car Goes Through Water?
2 Answers
If the car has not gone through deep water, it is normal to hear a squealing sound when braking. This situation will resolve itself as long as you drive normally and wait for the water on the brake pads to dry. Foreign objects such as plastic bags, paper scraps, and mud in the water can get stuck on the brake pads, causing abnormal noise when braking. Cleaning the brake pads will solve this issue. Check the brake calipers for issues such as worn guide pins or detached spring plates. If any faults are found, promptly visit a repair facility for servicing. Normally, brake pads come with a warning metal pin. When the brake pads wear down to a certain extent, this pin will rub against the brake disc, producing abnormal noise.
Brake noise after wading is a common issue, which I've encountered several times before. The reason is that water gets between the brake disc and brake pads, causing rust or dirt to get stuck. When dealing with it, I gently apply the brakes multiple times on dry roads and drive at low speed for 5-10 minutes to generate friction heat and evaporate the moisture. If the noise disappears, then it's fine; if it persists, it indicates a more serious problem, possibly severe rust. In this case, I check the brake disc surface for dents or thick rust, and if found, I lightly sand it with emery cloth. Safety is the top priority—remember to avoid driving through deep water. If you feel the brakes become soft after wading, stop and check immediately. Regular maintenance should include cleaning brake components, especially before the rainy season, which can save a lot on repair costs.
