hey guys it just started about a week or two ago but i seem to notice it when backing out of my drive way on the hill i use the brake to slow down a little and a really REALLY loud like screeching noise comes from the back of the car....any ideas what this is.. it didn't start doing this til after i have GMS1 put on.. i did have my rear rotors machined because they had a groove in them and my ebrake has stopped working also

 

Does it only do this when backing up, or does it do it all the time?

 

does it when i'm goin forward and it only really happends at speeds under 10 MPH after i drive around a bit it stops

 

rear brakes. Check inner rotor, it should be scored bad and possibly the inner pads are gone also...

 

jeeze i'm gonna be pissed i only got 7k on my ss

 

tell me about it ... my dealer said it was normal wear i have grooves already at 3000kms... oh and the brake squeaking they said was "normal for high performance brakes" ****** dealers...

 

definately sounds like your inner rotors are scoring and you inner pads are just pieces of metal now. Thats exactly what I had happening to my car before I flipped out and bought premium rotors and pads and took care of the prob myself.

 

https://www.cobaltss.net/forums/08-10-ss-turbocharged-general-discussion-152/my-theory-rear-brake-issue-218461/

 

i haven't checked yet but wouldn't it make the noise all the time it only makes the noise after it rains pretty much

 

Could be scored rotors, but could also be rust on the rotors from the rain. My rears are fine after 12k miles. You should pull the rear pads, clean everything off really well with brake cleaner, lube up the slide pins really well, put some of the brake queit on the back of the pads and see if that fixes the problem

 

alright thanks guys for your help

 

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