first real problem with the car besides my ebrake going out.

whenever i slow down I hear a grinding pressure sound/ its hard to explain. then i was going less than 5mph through my work and loud grinding sound occured.

sounds like it came from the right side.

taking it in friday.

Rotors are not gouged. Rims are not bent. brembos are clear.


**** my Life.

 

Gotta be the rear brakes.

 

I might have the same prob, noise is hard to describe, 2006 Cobalt SS tho.

 

it squeakes when I drive. then now when I hit the brakes. it grinds I can hear it. now something like the power sterring is making noise...but im not turning the wheel

its going in on friday

 

check the inside pad on the rear brakes, bet its worn down to metal like everyone elses on stock pads.

 

shouldnt be grinding if im not touching the brakes

 

When my camaro's brakes were going out they would make noise when I wasn't applying them.

 

Its those damn rear brakes!! Mine did that until I changed the pads and greased the calipers correctly!!

 

well i pray thats all it is. because it sounds like the whole car is going weird.

 

Its the brakes. I got that same noise going on too, its kinda muffled and hard to hear though, not very loud. but I can still differentiate it from normal road noise to braking noises.

 

Mine made a horrible noise before I replaced them

 

drive next to a wall or curb and lemme know if it gets louder.

just sotck pads? or new rotors?

 

Its the rear pads and rotors, mine are doing the samething and the dealer told me that I drove with the e-brake on and they didnt warranty it, I tried telling the guy about our rear brake issues and he told me there is no issues with them

 

both

 

Steve, the way disc brakes work is you push the pedal, the fluid pressure forces a piston out, and the pad contacts the rotors. Now, when you release them, there is not a spring or return system, so the pads will always rub lightly on the rotor, even when you're not pushing the pedal. The only thing that pushes the piston/pad back into the caliper is the rotor, and the release of pressure. Now that i've read this, i bet if you check the inside rear right pad, there isn't one.

 

K I will be checking the inside pad and rotor. see how bad they look.

 

Yeah, when you called me yesterday i was driving down from big bear, kinda tired haha. I thought you said the front, but the rear makes a lot of sense.

 

If it is the rear brakes this is good to know what it's gonna sound like so I'll know what to expect.

 

The slides probably are not lubed properly and that return spring for the parking brake is not always strong enough to release the pistons. I bet his inboard rear pads are metal to metal.

 

Ok so I've had my car for 2 weeks almost 3. It has 1061 on the odometer. I got it with 360 miles. Point is I just felt like going out and checking the back brake rotors just to see and they already have grooves. AT 1061 MILES!!! WTF. This is ******* bogus. I mean really? It makes no sense! AHHHHHHHHHHH!!!

I feel a little better.

 

Yep, exactly what i was thinkin. Seems to be far too common.

 

the pads are always touching the rotor a little, so if its down to metal, it will squeek and sound funny

 

The rear caliper never want to release right after being applied. I have no back seats in right now for a stereo project so I can hear it all clearly. After I take my e brake off, the rears scratch as if I was stopping. I am pretty sure my inner pad was gone at 10k miles

 

i have 20,000 miles on stock brakes..they started grinding when it was new lol. i'm sure they're shot but i'll just wait till they get real bad and upgrade.

 

its normal if you had your radio turned off and your windows down to hear that especially at low speeds. but if it sounds more coarse than smooth on the rotors check the back part of the rotor. this happened to me on another car. it sounded bad but everything looked ok. one day i reached behind the rotor and felt everything and the caliper was digging some nice grooves into it. so be carefull