Ask the Editors: Shushing Brake Squeal
Loud and not proud.
The first thing you’re going to want to do is pop one of those wheels off and take a good look at the brakes. Squealing is usually an indicator of worn brake pads. As the pad material starts to wear down, you can get some awful sound effects should the backing plate begin making contact with the rotor. But worn pads aren’t the only reason for squeals and squeaks.
Moisture can cause brake rotors to rust when not in use, sometimes as quickly as overnight! Additionally hard braking creates heat, which can glaze brake pads and cause squeaking immediately.
The only way you’re going to know for sure is to take a peek at the system. You’ll know immediately whether or not your pads are worn thin and/or whether there is any grooving, warping or rust on the rotor.
If there’s still pad material left and the rotors look okay, start by picking up a can of automotive brake cleaner and giving the brakes a good blast.
If this doesn’t solve your issue, remove the pads from the calipers and take fine grit sandpaper to the pad surface to remove glazing.
