Why Does the Car Brake Make Abnormal Noises?
2 Answers
Car brakes make abnormal noises mainly due to the following reasons: 1. Use of low-quality or overly hard brake pads. If inferior or excessively hard brake pads are used, they will produce abnormal noises when rubbing against the brake discs during braking. 2. Presence of sand or foreign objects between the brake pads and discs. Due to the unique design of disc brakes, some sand or foreign objects may inevitably get between the brake pads and discs, causing abnormal noises during braking. 3. Severe wear of the brake discs. Using low-quality brake pads or having hard foreign objects between the brake pads and discs can lead to abnormal wear of the brake discs. 4. Brake pad warning. Some brake pads come with electronic warnings, while lower-end vehicles may use warning tabs. If the wear on the brake pads reaches the warning line, abnormal noises will be produced.
If my car's brakes make squeaking or grinding noises while driving, my first thought is that the brake pads may be nearly worn out. When those metal pieces come into contact with the brake discs, they produce sharp noises, indicating it's time for a replacement. Additionally, foreign objects like small stones or dust trapped between the brake discs can also cause noise, especially after rain or in humid weather. It's normal for newly replaced brake pads to make slight noises during the first few hundred kilometers as part of the break-in process. However, if the noise persists or worsens, accompanied by reduced braking effectiveness, it's a sign to be wary of potential issues like wheel hub bearing problems or warped brake discs. Developing good habits, such as avoiding sudden braking to reduce wear and having a mechanic check the brake pad thickness every six months (replace if thinner than 3mm), is crucial. Safety is paramount—never take it lightly.
