I hear a metal-on-metal rattle coming from the rear of my car and have traced it to a donut shaped metal guard located on the inside of my rear disks. I hear it going over rough spots on the road....very obnoxious.

Can anyone tell me what this guard is for? I haven't had a brake job yet so i haven't taken it off. I can kick my tires and I hear the noise quite well!

Is this normal on stock disks?

Do aftermarket disks (auto zone, powerslots, etc) have this? Is there a grease or silicone type product that I could use?

I would appreciate any input cause it's driving me insane.

 

????? i think no one has any idea what u r talking about cuz i sure as hell dont!!!!!!!


pics would help

 

You need to remove your rear disc. Inside is your emerg. brakes, like a small drum brake. Something is loose in there. Later>>>>>

 

oh i see now.............i think hes right

 

Thanks ya'll........ I think its time to get a service manual.

 

It could be the backing plate bolts. There is a TSB on replacing them. It affected a range of VINs.

 

XBCHBUM is correct. Mine had that rattle too. (2002 Z28 Convertible) It was very annoying to me also. It's a warranty job, so take it in if you're still within the warranty period. Very simple fix.

 

Found the TSB http://web.archive.org/web/200111090...05-23-010.html

Noise/Rattle from Rear of Vehicle While Driving (Replace Rear Backing Plate Bolts) #01-05-23-010
Noise/Rattle From Rear of Vehicle While Driving (Replace Rear Backing Plate Bolts)
2001-2002 Chevrolet Camaro

2001-2002 Pontiac Firebird

Built Prior to VIN Breakpoint 22111830

Condition
Some customers may comment on a rattle noise coming from the rear of the vehicle while driving.

Cause
This condition may be caused by the rear backing plate bolts being under torqued.