2015 Z06 Steel Rotor Braking Squealing
05-28-2015, 09:32 AM
#1
Instructor
Thread Starter
2015 Z06 Steel Rotor Braking Squealing
My new 2015 Z06 with 700 miles on it has problems every time I come to a slow stop while street driving. The brakes work fine but just before I come to a complete stop, it seems that the pads squeal. I took it to a Chevy dealer who said there were no service bulletins about it. The CF C7 General Discussion has several threads from other 2015 Z06 owners with steel rotors having issues as well. My last new Z06 was a 2008 and it never had this problem. I don't use my 2015 Z06 to run on a track, just strictly street driving. What can be done to fix this annoying problem?
05-28-2015, 09:42 AM
#2
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"Ask Tadge" Producer
What you need is to have a small amount of pad grease applied to the BACKS(!!) of the pads. What you're hearing is the resonance of the pads inside the calipers. The pads are always vibrating, but they do so at a rate we can't usually hear. As you slow down, the pitch of that noise drops low enough that human ears can pick it up; thus the squeal.
Various manufacturers solve this in different ways. Some use separate shims for the backs of the pads. Some pad backs have shims built into them. Others just use pad grease which is the simplest of solutions.
05-28-2015, 10:05 AM
#3
Le Mans Master
My new 2015 Z06 with 700 miles on it has problems every time I come to a slow stop while street driving. The brakes work fine but just before I come to a complete stop, it seems that the pads squeal. I took it to a Chevy dealer who said there were no service bulletins about it. The CF C7 General Discussion has several threads from other 2015 Z06 owners with steel rotors having issues as well. My last new Z06 was a 2008 and it never had this problem. I don't use my 2015 Z06 to run on a track, just strictly street driving. What can be done to fix this annoying problem?
Get these...problem solved for me as well as much reduced dust from the oem pads!
https://www.corvetteforum.com/forums...rotor-zo6.html
05-28-2015, 11:34 AM
#4
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St. Jude Donor '11,'13
Get these...problem solved for me as well as much reduced dust from the oem pads!
https://www.corvetteforum.com/forums...rotor-zo6.html
https://www.corvetteforum.com/forums...rotor-zo6.html
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Adam Adelstein
Amp’D Autosport.com
Internet's largest retailer of Carbotech Performance Brake Pads.
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Adam Adelstein
Amp’D Autosport.com
Internet's largest retailer of Carbotech Performance Brake Pads.
PH:216-780-8825.
Email: sales@ampdautosport.com
Web Site & Direct ordering http://ampdautosport.com/
All major CC and Pay Pal accepted.
Check out Promo code:z28
05-28-2015, 11:36 AM
#5
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St. Jude Donor '11,'13
My new 2015 Z06 with 700 miles on it has problems every time I come to a slow stop while street driving. The brakes work fine but just before I come to a complete stop, it seems that the pads squeal. I took it to a Chevy dealer who said there were no service bulletins about it. The CF C7 General Discussion has several threads from other 2015 Z06 owners with steel rotors having issues as well. My last new Z06 was a 2008 and it never had this problem. I don't use my 2015 Z06 to run on a track, just strictly street driving. What can be done to fix this annoying problem?
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05-28-2015, 02:10 PM
#6
Instructor
Thread Starter
I moved this out of the "Ask Tadge" section as I suspect it's a simple solution and doesn't need the VLE's attention.
What you need is to have a small amount of pad grease applied to the BACKS(!!) of the pads. What you're hearing is the resonance of the pads inside the calipers. The pads are always vibrating, but they do so at a rate we can't usually hear. As you slow down, the pitch of that noise drops low enough that human ears can pick it up; thus the squeal.
Various manufacturers solve this in different ways. Some use separate shims for the backs of the pads. Some pad backs have shims built into them. Others just use pad grease which is the simplest of solutions.
What you need is to have a small amount of pad grease applied to the BACKS(!!) of the pads. What you're hearing is the resonance of the pads inside the calipers. The pads are always vibrating, but they do so at a rate we can't usually hear. As you slow down, the pitch of that noise drops low enough that human ears can pick it up; thus the squeal.
Various manufacturers solve this in different ways. Some use separate shims for the backs of the pads. Some pad backs have shims built into them. Others just use pad grease which is the simplest of solutions.
05-28-2015, 02:20 PM
#7
Team Owner
I notice mine squeak when the wheels are dirty. I think the pad dust doesn't help. If I keep the car washed and wheels and brakes clean.
They seem to never squeak. This is all cars not just the new Z06.
They seem to never squeak. This is all cars not just the new Z06.
05-28-2015, 02:29 PM
#8
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05-28-2015, 02:50 PM
#9
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My new 2015 Z06 with 700 miles on it has problems every time I come to a slow stop while street driving. The brakes work fine but just before I come to a complete stop, it seems that the pads squeal. I took it to a Chevy dealer who said there were no service bulletins about it. The CF C7 General Discussion has several threads from other 2015 Z06 owners with steel rotors having issues as well. My last new Z06 was a 2008 and it never had this problem. I don't use my 2015 Z06 to run on a track, just strictly street driving. What can be done to fix this annoying problem?
Then it just kind of went away. They still squeal just a bit coming to a stop, but it's completely tolerable now. I was about to go huffing into the dealership, but fortunately the problem resolved to something I can now live with. I would say give it some time and see if it stops. Clean / dirty made no difference in my case, just racking up some miles.
05-28-2015, 03:46 PM
#10
Before dumping a big pile of money into new pads, drop by your NAPA store and pick up an inexpensive small orange bottle of Disc Brake Quiet made by CRC. Pop the pads, apply a thin bead on the back plates, allow to air dry a bit, reassemble and you'll probably be good to go. Any brake shop worth their salt will know about it. I have used it on many brake jobs over the years as a matter of habit and have never had a problem with squeaks or squeals. As was mentioned, the squealing is a brake pad component resonant frequency and this stuff will damp that frequency (vibration).
06-01-2015, 09:33 AM
#11
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06-01-2015, 10:54 AM
#12
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There is a different option. Do nothing and just let them squeal. There is nothing wrong with brake squeal other than in the ear of the beholder. People can usually reduce squeal by shortening the stopping distance by using the brakes harder and just easing off the brake pedal as the wheels come to a stop so the nose doesn't bob up and down.
Bill
Bill
06-03-2015, 09:20 AM
#13
Instructor
Thread Starter
You're right, they don't understand the issues. The dealer put the pad grease only on the edges of the front brake pads, thus the noise continued. I had to take it to my own corvette mechanic who did understand the problem and put the pad grease on the backs of all the pads. I had to absorb the cost for that unless GM wants to reimburse me.
06-05-2015, 08:55 AM
#18
Instructor
Thread Starter
They reinstalled the stock pads with the backs now fully greased and my brakes are now quiet again.
06-09-2015, 03:15 PM
#19
Brake Squeal - OM
My new 2015 Z06 with 700 miles on it has problems every time I come to a slow stop while street driving. The brakes work fine but just before I come to a complete stop, it seems that the pads squeal. I took it to a Chevy dealer who said there were no service bulletins about it. The CF C7 General Discussion has several threads from other 2015 Z06 owners with steel rotors having issues as well. My last new Z06 was a 2008 and it never had this problem. I don't use my 2015 Z06 to run on a track, just strictly street driving. What can be done to fix this annoying problem?