- Apr 24, 2012
I have an 06 envoy Denali. I now have a squeal when backing up. It is loud and kind of sounds like a rubber squeal if that makes sense. It is not the brakes. It does not stop when the brakes are applied. It doesn't seem to do it when going forward. Always when backing up and seems to go away when you hit 5 to 10 MPH. It is very annoying and I'm stumped as to what it is. I jacked up the rear and took the passenger tire off and rotated the disc. It squeals when turning the disc and driveshaft by hand either forward or reverse (truck in neutral). There is no noise from the rear brakes. Any ideas?