Brake Squeak
 

Brought a 05 Corvette off of a guy a month ago. Breaks have a loud squeak, he told me he put in new pads. Still stops on a dime. Hear the squeak when you are lightly on the breaks to moderate, if you push harder when you here the squeak, squeak goes away. Primarily only hear it from the rear brakes. They have stock dill and slotted rotors, up front our non drill and slotted.

Any thoughts on what it may be?

Ryan

Mine does the exact same thing and I switched to hawk ceramics. I've tried bedding them in more than once but the squeak always returns.

i have the same issue with my 05 z51 with 24k on it. there is another post on here that says to change the pads this is from corvettepartsbob another forum member if you search the below thread C6 Z51 Brake Squeal/groan Fix! on google you can read through what he and others had to say... that said i have not addrresed this issue yet but if you find something that works for you let me know, cause it kinda makes me nuts

C6 Z51 Brake Squeal/groan Fix!

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This is a new bulletin just released for this problem. GM has plenty of the rear pads in stock, but very limited supply of the front pads inbound from the mfg. GM Parts was not aware of this bulletin and I passed it on to a supervisor and advised them they better get a bunch of fronts on hand asap. If you are having this problem notify your dealer and give them this bulletin # so they can order you new brakes. Remember this is not a recall, but just the information for a dealer to do a repair under factory warranty.

Bob

Document ID# 1682443


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Brake Squeal on Vehicles Equipped with Z51 Package - keywords disc front groan noise pad rear squeak #PIC3320A - (Jul 8, 2005)
Brake Squeal On Vehicles Equipped With Z51 Package
2005 Chevrolet Corvette With (RPO Z51)

The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI.

Condition/Concern:
Some customers may comment that when they apply the brakes, the vehicle exhibits a squeal noise. This squeal noise is heard coming from the front or rear of the vehicle. Vehicles produced with the Z51 sport package are equipped with larger rotors and harder pads.

Recommendation/Instructions:
Replace both the front and rear brake pads with the part numbers listed below. Both front and rear pads need to be replaced due to the difference in composition of the brake lining material. The existing rotors should be used and it is not necessary to machine the rotors.

Part Number
Description

89060211
Front Brake Pads

88964095
Rear Brake Pads


Please follow this diagnostic or repair process thoroughly and complete each step. If the condition exhibited is resolved without completing every step, the remaining steps do not need to be performed.



GM bulletins are intended for use by professional technicians, NOT a "do-it-yourselfer". They are written to inform these technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper service of a vehicle. Properly trained technicians have the equipment, tools, safety instructions, and know-how to do a job properly and safely. If a condition is described, DO NOT assume that the bulletin applies to your vehicle, or that your vehicle will have that condition. See your GM dealer for information on whether your vehicle may benefit from the information.
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© Copyright General Motors Corporation. All Rights Reserved.


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Document ID# 1682443

When was that released?

That must be an early release. I had my pads replaced under it in early 2006 and they never squealed again (and put out almost no dust). But I'm positive they stopped doing the replacement for free. But even paying for it the switch is worth it. Remember, though, the new pads are slightly less efficient.

I know a long time ago but do you happen to have the part numbers

Easy...
Part Number Description
89060211 Front Brake Pads
88964095 Rear Brake Pads

(They are in the post above...) :willy::cheers:

I got on parts taxi, and looked these numbers up and they say these pads fit the brakes that are non H/D. I would think Z51 would be heavy duty brakes??? I am going to buy a set of these if im sure they are for
Z51. anyone know???

Looks like the OE Z51 pads are;

19152862
89026853

Thanks
Kevin

Put some Permatex anti-squeal on not only the back of the pad holder, but also between the metal holder and the actual pad itself. So, when you're done it'll be pad -> anti-squeal -> metal pad holder -> anti-squeal -> caliper or piston.

So are those the semi-ceramic or the full ceramic?
Thanks

I have the same question

Also, are there wear indicators/ grooves on the front OEM z51 pads. I can see them in the rear. The front however are plenty thick, but i do not see a groove.

How To Tuesday
 

Here's another resource should you need it...
https://www.corvetteforum.com/how-to...ueaking-368407

How-To Tuesday
 

Seems like a good topic for today's How-To article...
https://www.corvetteforum.com/how-to...ueaking-368407