September 12, 2018

Why Do My Car Brakes Make Noise?

Car Brakes with Thunderbird Automotive

What’s that squeaking sound? Did you hear that rattle? Am I the only one hearing the grinding noise? When your car brakes start making noise, it’s hard to keep calm. However, there are a number of things that can contribute to brakes making strange sounds, and not all of them require major repairs. Why are your car brakes making noise?

Brakes 101

Brakes have one of the hardest jobs in your car or truck, as they regularly undergo a great deal of force and generate a lot of heat as a result. Whenever you press down on your brake pedal, the energy that your car created moving down the road is converted to heat through friction. Stopping on a highway or even stopping on a residential street can make your brakes surprisingly hot! The abuse that your brakes take every time you slow down means that a certain amount of noise is reasonable, but some sounds are never good to hear.


A grinding sound when you use your car brakes is a sign of a serious problem, and you should take your car in right away. A loud grinding noise could be caused by the rotor disc making direct contact with the calipers. This can happen due to a lot of wear on the rotors or the brake pads. If the sound only occurs when actively braking, this could be the problem. A grinding noise can also occur if a small stone or foreign object is lodged in the caliper. Car brakes with a stone stuck in the calipers will typically make a constant screeching or grinding sound whenever the vehicle moves. In both cases, you should take your car in to have the problem fixed instead of troubleshooting it yourself.


Car brakes that rattle are not always a cause for concern, as brake pads can naturally make a rattling sound as a result of heat expansion. However, if the rattling noise happens consistently and when you have your foot on the brake pedal, it’s a sign of another problem. If the rattling is constant or occurring when your foot is on the pedal, you should take your car in to be checked out.


Brake squeaks can be annoying, but they don’t always mean that there is a serious problem. Inexpensive brake pads are a common culprit, and if you got a discount brake job, there’s a good chance that the squeaks are a result of the low-cost materials used. If your brakes are making a squeaking sound while you drive down the road, but the noise disappears when you press on the brake pedal, your wear indicator might be striking the rotor and causing the sound. In this case, you shouldn’t ignore the noise, since it’s a sign that your pads are thin and need replacement.

Thunderbird Automotive Can Fix Your Car Brakes

Thunderbird Automotive is a leader in auto repair and maintenance in Phoenix, AZ thanks to our awesome customer service, broad range of repair services and expertise. To learn more about our services and get your vehicle checked out, please contact us at (602) 938-3631.

September 12, 2018