Learn About Brake Noise
Did you know that your automotive brakes are designed to make noise when they become worn? Brake systems involve using friction to stop high powered rotation of steel moving parts. Usually a friction pad or shoe is applied to a steel rotor or drum resulting in normal scraping and vibration sounds. Dampening devices and insulation are used to reduce the brake noise and shield the vehicle occupants. However wear or failure of brake parts can result in abnormal brake noise. Problem sounds can be louder than normal, more high pitched than normal, more low pitched than normal, or irregular in other ways.
Your mechanic is trained to distinguish between and discern problems causing the different types of brake noise. However, you can learn to discern the sounds too! We endeavor to publish from time-to-time articles like “Squealing Brakes? What to do when your brakes make unusual sounds.” that will help you interpret any abnormal brake noise.