Whats causing a 1 second rear brake squeak?
Thread Starter
Drifting
Joined: Jul 2011
Posts: 1,697
Likes: 139
From: Syracuse NY
Whats causing a 1 second rear brake squeak?
Whenever I apply my brakes, I get a 1 second 'squeak' from what sounds like the rear. No grinding, no grabbing, just 1 second of a squeak. Pads are fairly new, calipers are new, rotors are....?????. Im getting ready for my winter overhauls, and figure I should look into the rear brakes. Anybody have any suggestions where to start looking?
Melting Slicks
Joined: Apr 2009
Posts: 2,632
Likes: 112
From: Great Plains Iowa
Whenever I apply my brakes, I get a 1 second 'squeak' from what sounds like the rear. No grinding, no grabbing, just 1 second of a squeak. Pads are fairly new, calipers are new, rotors are....?????. Im getting ready for my winter overhauls, and figure I should look into the rear brakes. Anybody have any suggestions where to start looking?
My brakes have squealed off and on over the years and the cause was always a bit of air in the calipers and/or hard brake pads. I've been using Raybestos pads for about 10 years and they don't squeal like other brands I've used.
Burning Brakes
Joined: Jun 2005
Posts: 1,113
Likes: 35
From: LaUgH, mOrE!
Whenever I apply my brakes, I get a 1 second 'squeak' from what sounds like the rear. No grinding, no grabbing, just 1 second of a squeak. Pads are fairly new, calipers are new, rotors are....?????. Im getting ready for my winter overhauls, and figure I should look into the rear brakes. Anybody have any suggestions where to start looking?
One day I got that annoying 1 second squeak when initially applying brakes. Wouldn't go away no matter what I tried. I ended up taking it in, and they simply 'reclocked' the rotors. This, from what I understand, adjusted rotor runout within tight specs and quieted it all down. Been quiet for 5 years now.
This assumes when put it all together, one brushed and cleaned off all parts of rust and residual brake dust. Cleaning things thoroughly before reassembly does wonders for most repairs.
Pro
Joined: Feb 2012
Posts: 577
Likes: 6
The soft lines might be internally swelling a little tiny bit, keeping a slight bit of extra pressure on the rotor for a few seconds as the pressure releases. This will potentially get worse where it is actually causing a grab.
Unless the soft lines are new, it's fast and easy to replace them and that's where I would start.
Unless the soft lines are new, it's fast and easy to replace them and that's where I would start.
Thread Starter
Drifting
Joined: Jul 2011
Posts: 1,697
Likes: 139
From: Syracuse NY
The soft lines might be internally swelling a little tiny bit, keeping a slight bit of extra pressure on the rotor for a few seconds as the pressure releases. This will potentially get worse where it is actually causing a grab.
Unless the soft lines are new, it's fast and easy to replace them and that's where I would start.
Unless the soft lines are new, it's fast and easy to replace them and that's where I would start.
Thanks for the advice, Ill make sure I take a look at the lines.
