2012 Gt brake problem? - Mustang Evolution

Go Back   Mustang Evolution > 1979-2015 Mustang GT || Tech and Talk > 2011-2014 Mustang GT



Reply
 
Thread Tools Search this Thread
Please support our sponsors and let them know you heard about them here!
Old 08-07-2012, 02:13 AM   #1
Registered Member
Regular
 
mcseb's Avatar
 
Join Date: Aug 2012
Region: Florida
Posts: 22
2012 Gt brake problem?

Rear brakes starting to squeal.. Rear rotors recently recut with new motorcraft brake pads.. Why is it the rust is only towards the inner part of the rotor? Contact issues? Happening on both rear rotors.. (Brembo Brake package)

Click image for larger version

Name:	ForumRunner_20120807_030956.png
Views:	571
Size:	349.4 KB
ID:	62602
mcseb is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 08-07-2012, 02:40 AM   #2
Registered Member
Regular
 
2012Vader5.0's Avatar
 
Join Date: Jun 2012
Region: Arizona
Posts: 145
The squeaking I can't help on, the rust is the area of no contact between the pads and the discs. I have attached pics from my mustang and a pathfinder to show you the rust area it's only surface rust so it's not any worry.
Attached Thumbnails
Click image for larger version

Name:	image-1291665261.jpg
Views:	204
Size:	365.9 KB
ID:	62604   Click image for larger version

Name:	image-2005942736.jpg
Views:	156
Size:	342.0 KB
ID:	62605  

Click image for larger version

Name:	image-207451515.jpg
Views:	203
Size:	288.2 KB
ID:	62606  
2012Vader5.0 is offline   Reply With Quote
Old 08-07-2012, 04:58 AM   #3
Registered Member
Regular
 
Redstang1's Avatar
 
Join Date: Jan 2012
Location: Statesboro
Region: Georgia
Posts: 828
I have the brembo and does the squeaking happen to be when your driving and don't press the brakes? I have that problem and three dealers and 7 shops later nobody can find a issue
Redstang1 is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 08-07-2012, 07:53 AM   #4
Registered Member
Regular
 
Smoke's Avatar
 
Join Date: Feb 2011
Region: Georgia
Posts: 428
How many miles on her I have 12 brembo car the only thing I.hate is all that dam.break dust
Smoke is offline   Reply With Quote
Old 08-07-2012, 08:58 AM   #5
Registered Member
Regular
 
Join Date: Dec 2011
Region: Canada
Posts: 2,974
Re: 2012 Gt brake problem?

The pad never contacts the full face of the rotor on any brake setup. Mainly this is a thermal issue. the outer part of the rotor is vented and exposed to cooling air, the middle isn't. If you had full-width pads, you'd heat the inner and outer areas differently and produce warping. Some cars cover more of the disc than others. Yours looks about like mine, about a a cm in from the hat.

Brake squeak is usually due to brake dust or road grime. Pull the wheels and get in there with a can on non-chlorinated brake cleaner and shoot all the crud off.

I'm surprised the rear went so soon. 80% of the braking is done by the fronts. Do you have ALOT of miles on the car or very hard use? I would not have cut those rotors, as they are pretty thin, I would have just replaced them.
5LHO is offline   Reply With Quote
Old 08-07-2012, 10:56 AM   #6
Registered Member
Regular
 
mcseb's Avatar
 
Join Date: Aug 2012
Region: Florida
Posts: 22
I have close to 21,000 miles.. The brake pads in the back went unevenly. Back left gave out first and scratched the rotor.. My understanding was they wear evenly? I'd always get rust marks on the rotor.. But since the new pads have been put on with the newly cut rotor... The rust is only accumulating towards the inner rotor. What could that mean?

---------- Post added at 10:56 AM ---------- Previous post was at 10:51 AM ----------

It only makes the sound when i apply the brakes.. And overall.. Its mainly highway driving. I don't run it hard. Only occasionally when you get that urge
mcseb is offline   Reply With Quote
Old 08-07-2012, 11:08 AM   #7
Registered Member
Regular
 
Join Date: Jun 2012
Region: Oregon
Posts: 36
Re: 2012 Gt brake problem?

Quote:
Originally Posted by Redstang1 View Post
I have the brembo and does the squeaking happen to be when your driving and don't press the brakes? I have that problem and three dealers and 7 shops later nobody can find a issue
Where does the squeaking sound like it's coming from? The rear of the car? And is it rotational (it speeds up/slows down depending on your speed?) If so, do you have factory 3.73 gears?
12gtpdx is offline   Reply With Quote
Old 08-07-2012, 12:02 PM   #8
Registered Member
Regular
 
mcseb's Avatar
 
Join Date: Aug 2012
Region: Florida
Posts: 22
.
mcseb is offline   Reply With Quote
Old 08-07-2012, 12:39 PM   #9
Registered Member
Regular
 
Join Date: Dec 2011
Region: Canada
Posts: 2,974
Re: 2012 Gt brake problem?

Quote:
Originally Posted by mcseb View Post
I have close to 21,000 miles.. The brake pads in the back went unevenly. Back left gave out first and scratched the rotor.. My understanding was they wear evenly? I'd always get rust marks on the rotor.. But since the new pads have been put on with the newly cut rotor... The rust is only accumulating towards the inner rotor. What could that mean?

---------- Post added at 10:56 AM ---------- Previous post was at 10:51 AM ----------

It only makes the sound when i apply the brakes.. And overall.. Its mainly highway driving. I don't run it hard. Only occasionally when you get that urge
Blowing through rear brakes in 21K is amazing. That's low miles for the front brakes, doing most of the work.

Pretty normal for single piston brakes to wear unevenly a bit. Caliper pins need to be well-greased on those setups.

I usually knock the corners off the brake pads when I install them, if they aren't already chamfered, to cut down on noise.

It's normal to see a little rust near the rotor hat, especially after you cut the steel, it's very rust prone after that.
5LHO is offline   Reply With Quote
Reply

Lower Navigation
Go Back   Mustang Evolution > 1979-2015 Mustang GT || Tech and Talk > 2011-2014 Mustang GT

Tags
2012 gt

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are On
Refbacks are Off


» Like Us On Facebook



11:37 AM


Powered by vBulletin® Version 3.8.8
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Content Relevant URLs by vBSEO 3.6.0

MustangEvolution.com is in no way associated with or endorsed by Ford Motor Company.