What Causes the Squealing Sound When Braking a Car?
1 Answers
There are several reasons why a car may produce a squealing sound when braking: 1. Use of low-quality or overly hard brake pads. If inferior or excessively hard brake pads are used, they can create a squealing noise when rubbing against the brake disc during braking. Therefore, it is essential to use high-quality brake pads when replacing them. 2. Presence of sand or foreign objects between the brake pad and brake disc. During normal driving, it is inevitable to encounter complex road conditions. Due to the unique design of disc brakes, sand and foreign objects can sometimes get lodged between the brake pad and brake disc, leading to unusual noises during braking. 3. Severe wear of the brake disc. Using low-quality brake pads or having hard foreign objects trapped between the brake pad and brake disc can cause abnormal wear on the brake disc. If the brake disc becomes excessively worn, it will also produce a squealing sound when braking. 4. Brake pad warning. Many people are unaware of when to replace brake pads. There is no strict mileage requirement for replacement; they should be replaced once they become thin. Some brake pads come with electronic warnings, while lower-end vehicles may use warning indicators. If the wear on the brake pads reaches the warning threshold, a squealing alert sound will be emitted, indicating that the pads need to be replaced promptly.
