I bought my car in January, dealer illegally passed inspection, and the brakes were loud from the get go. I then replaced the rotors with brembo slotted rotors (all 4) and replaced all 8 brake pads with wagner thermo quiets. They won't stop squeaking! I've tried just about everything, I've put disc brake quiet on them numerous times, lubricated all of the brake components. I have no clue what it is.

My buddy (mechanic) thinks it may just be ****ty brake pads, but wagner thermoquiets are supposed to be pretty decent eh? It's the loudest at the front passenger. It's real bad in the morning and at slow stops. But it doesn't go away.

BTW, I have an '04 Brembo Coupe.

Thanks for any help.

 

Did you replace the anti-squealing shims on the brake pads? I did that on my last set a while back (the coating was peeling and one of the shims was bent), and the squeaking noise has gone away since then.

 

Did you apply brake grease (or whatever it's called) between the pad and the backing plate?
Were the rotors new when installed them? If not, you may need to shave them.
Have you bedded the brakes?

 

Yes I did, it's called "Disk Brake Quiet" It's pink and dries a neon red

They were brand new from Keystone.

Bedded?

You mean replace the plates on the back of the pads?

Just delete them? Or actually replace them?

 

^ Yes you must have the anti-squealing shim plates attached to the backs of the brake pads at all times. If for some reason the shims are not on your pads, that is most likely the reason why you are hearing the squeaking noise when applying the brakes.

 

They definetely are there.

 

It's a process you should follow whenever you change your pads or rotors. It basically involves a series of hard stops to transfer some pad material onto the rotors. It improves braking performance, wear, and noise. What you're describing sounds pretty severe and I don't know if bedding would help, but it's worth a shot.

http://www.zeckhausen.com/bedding_in_brakes.htm

 

Worth a shot, I'll try it tomorrow prolly.

 

Since brake noise is the number one dealer complaint, the Factory spends millions testing and optimizing oem components for minimal noise.

The expensive OEM thermal shims are tuned to match a specific set of pads and rotors.
Changing any component will probably increase noise significantly.

Take a moment to view this slide show about Wolverine tuned shims:
http://www.wolverine.cn/files/pdf/shim.pdf

 

Good source of info you found.

 

It basically just says how wolverine is the best?

 

Actually, now that I think about it, bedding may just solve the problem, becauses if I stomp on the brakes a lil bit, the squeaking will temporarily go away. I need to get on that and find a nice long smooth open road that I can do it on.