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-   -   Brakes won't shutup! They keep squeaking. (https://g35driver.com/forums/brakes-suspension/298634-brakes-wont-shutup-they-keep-squeaking.html)

Ginevan Jul 22, 2009 11:34 AM

Brakes won't shutup! They keep squeaking.
 
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.

lexusk8 Jul 22, 2009 12:13 PM

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.

Rostasteve Jul 22, 2009 05:13 PM

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?

Ginevan Jul 22, 2009 09:23 PM


Originally Posted by Rostasteve (Post 4416380)
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?


Originally Posted by lexusk8 (Post 4415600)
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.

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

Just delete them? Or actually replace them?

lexusk8 Jul 22, 2009 09:50 PM

^ 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.

Ginevan Jul 22, 2009 09:58 PM

They definetely are there.

Rostasteve Jul 22, 2009 10:19 PM


Originally Posted by Ginevan (Post 4416991)
Bedded?

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

Ginevan Jul 22, 2009 11:45 PM

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

Q45tech Jul 24, 2009 11:30 AM

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

superchargedg Jul 24, 2009 01:09 PM


Originally Posted by Q45tech (Post 4421224)
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.

Ginevan Jul 24, 2009 09:39 PM


Originally Posted by Q45tech (Post 4421224)
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

It basically just says how wolverine is the best?

Ginevan Jul 24, 2009 10:04 PM

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.


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