Squealing pad solution
Thread Starter
Racer
Joined: Jun 2004
Posts: 286
Likes: 14
From: jacksonville florida
Squealing pad solution
I read here last week that GM was putting on a different type of brake pad now on the Z51 option brakes to stop the squealing. I told this to my dealer, and he did not know what I was taslking about. I am really getting sick and tired of the loud squeal everythime I come to a slow stop. The service manager stated that if I can get the new part number for the different pads, he would order them and put them on my car, based on my constant complaining about the squeal. Is there anyone out there who can get me the new part number for the brake pads? I am embarassed to drive it in traffic. I do not believe that a $53,000.00 car should sound that way. I really need this weapon to attack GM with. Thank you in advance for any help in this matter.
Instructor
Joined: Apr 2004
Posts: 118
Likes: 0
From: Raleigh NC
Originally Posted by Ghost 1
I read here last week that GM was putting on a different type of brake pad now on the Z51 option brakes to stop the squealing. I told this to my dealer, and he did not know what I was taslking about. I am really getting sick and tired of the loud squeal everythime I come to a slow stop. The service manager stated that if I can get the new part number for the different pads, he would order them and put them on my car, based on my constant complaining about the squeal. Is there anyone out there who can get me the new part number for the brake pads? I am embarassed to drive it in traffic. I do not believe that a $53,000.00 car should sound that way. I really need this weapon to attack GM with. Thank you in advance for any help in this matter.
Le Mans Master
Joined: Mar 2000
Posts: 6,560
Likes: 4
From: Tobacco Road NC
Most, if not all, factory track capable high performance brake pads squeel to the point of being a PITA. It's a combination of wanting both performance and longevity. You probably won't get help from GM, but you could go with a good aftermarket pad set like Hawks HPS series - that's what I'm doing. They are quieter and produce less dust. Hawk also produces a street/track series if you want that capability.
Pro
Joined: Oct 2004
Posts: 568
Likes: 0
From: Haymarket VA
St. Jude Donor '07
Info courtesy of SA734 on the performance forum:
"I had the Z51 squealing and dust problem so I ordered the C-6 Ceramic Pads from Parts Bob last week. GM Part #88909667 Front and #88909668 Rear"
"I had the Z51 squealing and dust problem so I ordered the C-6 Ceramic Pads from Parts Bob last week. GM Part #88909667 Front and #88909668 Rear"
Intermediate
Joined: Apr 2005
Posts: 31
Likes: 0
Bedding in brakes
Originally Posted by DE CHIEL
Performace cars have performance brakes. the squeel is the result of being too gentle on the brakes. Brake harder. When the brakes are used properly, they do not squeel.
George
Pro
Joined: Sep 2004
Posts: 678
Likes: 0
From: Winchester VA
Originally Posted by ALFA 1
I think this answer is on the right track. I've seen so many posts on these pads (got nothing better to do than to read these posts until mine comes!) and wonder if the pads that squeal have been bedded in properly. The usual rule for new pads is to be gentle for a hundred miles or so, then go out on a long stretch and do a half-dozen very hard stops from about 60-80 mph. Don't just slam on the brakes but squeeze them hard and quickly (go for impending lockup without relying on the ABS). Write in if they still squeal after doing that.
George
George
I totally agree. My issue is the excessive dusting. I also know this is a by product of some performance pads. But there are performance pads out there that are virtually quiet and dust maybe 10% of the stock pads.
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Team Owner
Joined: Sep 2003
Posts: 43,084
Likes: 33
From: Raleigh / Rolesville NC
Originally Posted by C64BC
I totally agree. My issue is the excessive dusting. I also know this is a by product of some performance pads. But there are performance pads out there that are virtually quiet and dust maybe 10% of the stock pads.
Wash the wheels and car more often
I run Wilwood H pads. $330-$350 or so / set. is a race pad, virtually no noise and little dust.
Le Mans Master
Joined: Aug 2000
Posts: 5,529
Likes: 1,943
From: Austin Texas
Originally Posted by DE CHIEL
Performace cars have performance brakes. the squeel is the result of being too gentle on the brakes. Brake harder. When the brakes are used properly, they do not squeel.
B) my brakes do not squeel after I have had the car on the road race track and run the snot out of it--until A) above.
So, you are left with 2 choices, 1) never use your brakes hard on the street--difficult at best, OR, 2) take the car to a track and run the snot out of it on a regular basis.
I use option 2.
Team Owner
Joined: Sep 2003
Posts: 43,084
Likes: 33
From: Raleigh / Rolesville NC
Originally Posted by MitchAlsup
2) take the car to a track and run the snot out of it on a regular basis.
I use option 2.
I use option 2.
"a little less brake a little more gas." Fagio
besides brakes only slow you down.
Le Mans Master
Joined: Oct 2004
Posts: 6,813
Likes: 287
From: Toronto Ontario Canada
Originally Posted by DE CHIEL
Performace cars have performance brakes. the squeel is the result of being too gentle on the brakes. Brake harder. When the brakes are used properly, they do not squeel.
Team Owner
Joined: Jun 2001
Posts: 26,714
Likes: 344
From: Houston, TX
I can't believe all the replies to this post suggesting that if our brakes are squealing we are not using them hard enough. Gee, as I'm cruising around the city streets of the Houston area, let's see how many times I can get rear ended by slamming on my brakes (or throw my wife up against the seatbelt so hard she doesn't want to ride with me).
I have owned 48 vehicles, many of them high performance cars. This is the first one that has ever had squeaking brakes. And I drive them all the same. Suggesting that it is our fault for not braking hard enough is just plain stupid.
I have owned 48 vehicles, many of them high performance cars. This is the first one that has ever had squeaking brakes. And I drive them all the same. Suggesting that it is our fault for not braking hard enough is just plain stupid.
Team Owner
Joined: Jun 2001
Posts: 26,714
Likes: 344
From: Houston, TX
Originally Posted by AU N EGL
the dust is a result of the friction between the rotor and the pad. No friction, no dust, no stopping power.
Wash the wheels and car more often
I run Wilwood H pads. $330-$350 or so / set. is a race pad, virtually no noise and little dust.
Wash the wheels and car more often
I run Wilwood H pads. $330-$350 or so / set. is a race pad, virtually no noise and little dust.
BTW, can anyone find the contradiction in his post? I can.!
Pro
Joined: Sep 2004
Posts: 678
Likes: 0
From: Winchester VA
Originally Posted by AU N EGL
the dust is a result of the friction between the rotor and the pad. No friction, no dust, no stopping power.
Wash the wheels and car more often
I run Wilwood H pads. $330-$350 or so / set. is a race pad, virtually no noise and little dust.
Wash the wheels and car more often
I run Wilwood H pads. $330-$350 or so / set. is a race pad, virtually no noise and little dust.
Thanks for your brilliant explanation of the physics involved in stopping the car.
Pro
Joined: Sep 2004
Posts: 678
Likes: 0
From: Winchester VA
Originally Posted by jschindler
Sorry, but 30 miles of easy driving should not leave my wheels so dirty I can write my name on them. I have done it (and posted the picture on this forum). Ya'll seem to think some of us have never owned high performance cars before (see my post above). I clean my wheels every time I drive the car - even 10 miles. The C5's didn't do that. Care to look up the stopping distances of the C5 vs the C6? Go ahead - challenge me.
BTW, can anyone find the contradiction in his post? I can.!
BTW, can anyone find the contradiction in his post? I can.!
in his attempt to be witty he made himself look like a fool! 
Race Director
Joined: Jan 2005
Posts: 10,924
Likes: 853
From: Daytona Beach FL
First of all, I have an F55 and not a Z51 so I don't have any squeal and only a little dust.
Second, I don't know Au n Egl except from his posts on this forum.
That said, I don't think you should discount what he says because you don't like the contradiction in his statement. I think he is trying to tell you something that should be totally obvious. Anybody with a Z51 should put up with it or change pads.
Again, I don't know Au n Egl, but I have high regard for him due to the information he has passed to us here on the forum in many threads about brakes and because he is a driving instructor in some high performance arena. I don't think he looks like a fool just because he is trying to explain the obvious to us.
Bob
Second, I don't know Au n Egl except from his posts on this forum.
That said, I don't think you should discount what he says because you don't like the contradiction in his statement. I think he is trying to tell you something that should be totally obvious. Anybody with a Z51 should put up with it or change pads.
Again, I don't know Au n Egl, but I have high regard for him due to the information he has passed to us here on the forum in many threads about brakes and because he is a driving instructor in some high performance arena. I don't think he looks like a fool just because he is trying to explain the obvious to us.
Bob
Team Owner
Joined: Jun 2001
Posts: 26,714
Likes: 344
From: Houston, TX
Originally Posted by beezeye
First of all, I have an F55 and not a Z51 so I don't have any squeal and only a little dust.
Second, I don't know Au n Egl except from his posts on this forum.
That said, I don't think you should discount what he says because you don't like the contradiction in his statement. I think he is trying to tell you something that should be totally obvious. Anybody with a Z51 should put up with it or change pads.
Again, I don't know Au n Egl, but I have high regard for him due to the information he has passed to us here on the forum in many threads about brakes and because he is a driving instructor in some high performance arena. I don't think he looks like a fool just because he is trying to explain the obvious to us.
Bob
Second, I don't know Au n Egl except from his posts on this forum.
That said, I don't think you should discount what he says because you don't like the contradiction in his statement. I think he is trying to tell you something that should be totally obvious. Anybody with a Z51 should put up with it or change pads.
Again, I don't know Au n Egl, but I have high regard for him due to the information he has passed to us here on the forum in many threads about brakes and because he is a driving instructor in some high performance arena. I don't think he looks like a fool just because he is trying to explain the obvious to us.
Bob
Au n Egl has made many great posts on this forum - I certainly did not mean to come across as flaming him. But when anyone makes a statement like he made, then follows it up with a contradiction, he's gonna get blasted. It's just the law of the forum. We don't want to do it to the poor guy, but we have to. I think it's in the rules
Le Mans Master
Joined: Dec 2003
Posts: 7,457
Likes: 144
From: NC
My brakes were squeak free until tonight. Tonight was the first time I ran them hard having a little....fun. So those thinking that you have to run them hard to keep them from squealing, sorry but I beg to differ. However, being that they are a performance oriented brake system, I can live with the squeeking. I didn't buy the performance kit for the car to act like a cadillac.