Brakes Chirping----Why?
Thread Starter
Melting Slicks
Joined: Jan 2003
Posts: 2,713
Likes: 31
From: Shreveport LA
LA Events Coordinator
Brakes Chirping----Why?
This past weekend I replaced all the brake pads (AC Delco) and re-bled the system. The brakes work great (stops straight and true)...BUT when I coast to a red light (foot off the brake) I hear a chirping noise (after driving around and the brakes are hot). The split-second I touch the brake pedal....the noise disappears. Has this ever happened to anyone and what is it?
Melting Slicks
Joined: Aug 2003
Posts: 2,135
Likes: 2
From: Dayton Oh
This is not that uncommon. As you know the pads actually ride up against the rotor. If a little dirt or dust is built up, then this can cause the chirping noise. However, I'm suspecting that you didn't turn or dress your rotors when replacing the pads. There's no need to have the rotors turned when replacing pads unless they are out-of-round or have some very deep scratchs. However, you should always dress both sides of the rotors by a brisk sanding with 40-80 grit sand paper to remove the glaze.
Le Mans Master
Joined: Oct 2005
Posts: 6,247
Likes: 471
From: Glen Allen, VA
I think mine was doing exactly what you're talking about. the brakes squeaked in time with how fast the wheel was turning and stopped squeaking as soon as you touch the brake pedal. I pulled the wheel and with the rear up on stands, put it in gear and watched the caliper move slightly in and out on the pins. After watching that, I just took the pins out and greased them and problem solved.
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Verdad Gallardo
Team Owner
Joined: Jun 2001
Posts: 23,375
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From: Virginia USA
Originally Posted by C3 4ME
I think mine was doing exactly what you're talking about. the brakes squeaked in time with how fast the wheel was turning and stopped squeaking as soon as you touch the brake pedal. I pulled the wheel and with the rear up on stands, put it in gear and watched the caliper move slightly in and out on the pins. After watching that, I just took the pins out and greased them and problem solved.
Drifting
Joined: Jul 2005
Posts: 1,623
Likes: 29
From: The Netherlands
I hope the above solves your problem. Only when the shop checked my drive axles (diff-wheel) and replaced the one that turned out to be bent ( 
) I got rid of those d*#ned 'birds nestst' in the back of the car. 
) I got rid of those d*#ned 'birds nestst' in the back of the car.
Burning Brakes
Joined: Aug 2005
Posts: 1,126
Likes: 0
From: Hudson Falls, N.Y. 76 Vette Modified L-48
Originally Posted by C3 4ME
I think mine was doing exactly what you're talking about. the brakes squeaked in time with how fast the wheel was turning and stopped squeaking as soon as you touch the brake pedal. I pulled the wheel and with the rear up on stands, put it in gear and watched the caliper move slightly in and out on the pins. After watching that, I just took the pins out and greased them and problem solved.
Mine do that, was gonna suggest that..it's not a horrible sound and mine are intermittent...basically, I ignore it...
