Back Wheel Squeak on Brake Release

[ServiceGMC]

2012 GMC Sierra SLE

Has anyone had this experience and knows the cause and how to fix.

When I apply the brake, everything is fine. The truck brakes and stops as expected. When I release the brake, I hear a squeak that comes from the back wheels. This happens when I am moving and I brake or if I am stopped and pump the brake. <press - release - squeak>

If I set the parking brake and try this test, releasing the brake does not result in a squeak. <set parking brake - press - release - no squeak>

If I set the parking brake and then release the parking brake, I hear the same squeak. <set parking brake - release parking brake - squeak>

These symptoms seem to indicate something that is related to the parking brake. Note that this year GMC Sierra has drum brakes and I am thinking the brake hardware inside the drum is squeaking.

Any suggestions on how to get rid of this squeak?

Thanks in advance.

 

[tonyflash]

A drum hardware kit may fix your problem. However it is best to have it checked by a mechanic.