Are my brakes warped?
06-17-2014, 12:46 AM
#21
Flat out false. Uneven pad deposits do not make a warped rotor.
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Cliff8928 (07-10-2017)
06-17-2014, 12:56 AM
#23
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You are right but they can make the pedal feel like a warped rotor is present.
http://www.stoptech.com/technical-su...nd-other-myths
http://www.stoptech.com/technical-su...nd-other-myths
06-17-2014, 12:59 AM
#24
06-17-2014, 01:00 AM
#25
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06-17-2014, 11:14 AM
#26
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Rotors being replaced
Just back from the dealer, Rear rotors or order and will be replaced next week. VIN #757, 5800 MI, Z51, never tracked.
TRC7
TRC7
Hey VAmikeC7,
I’m sorry that you have this concern with your brakes. It looks like you are asking the forum for some feedback, but might head to the dealership once TRC7 speaks with his dealer. Feel free to shoot me a PM if you decide to head in.
Austin J. (Assisting)
Chevrolet Customer Care
Hi TRC7,
I see you are already planning on heading to the dealership for this braking issue. If you could let me know how the dealership visit goes, I’d appreciate it. If you have any questions before or after your visit, send a PM my way.
Austin J. (Assisting)
Chevrolet Customer Care
I’m sorry that you have this concern with your brakes. It looks like you are asking the forum for some feedback, but might head to the dealership once TRC7 speaks with his dealer. Feel free to shoot me a PM if you decide to head in.
Austin J. (Assisting)
Chevrolet Customer Care
Hi TRC7,
I see you are already planning on heading to the dealership for this braking issue. If you could let me know how the dealership visit goes, I’d appreciate it. If you have any questions before or after your visit, send a PM my way.
Austin J. (Assisting)
Chevrolet Customer Care
06-17-2014, 11:48 AM
#28
Drifting
That fancy article mentioned heat being the myth for warped rotors. It went on to indicate that improper torque can be an issue. I have seen improperly torqued lug nuts cause a warped rotor first hand.
With one qualifier, presuming that the hub and wheel flange are flat and in good condition and that the wheel bolts or hat mounting hardware is in good condition, installed correctly and tightened uniformly and in the correct order to the recommended torque specification, in more than 40 years of professional racing, including the Shelby/Ford GT 40s – one of the most intense brake development program in history - I have never seen a warped brake disc.
06-17-2014, 11:48 AM
#29
Melting Slicks
You should stop short then slowly creep up when stopping.
Even in street driving the brakes get hot. When you come to a stop and keep your foot on the brake some of the pad can stick to the rotor. By stopping before you need to and slowly creeping forward the pad and disk won't be sitting together long enough to fuse. By the time you are done creeping forward a couple of feet they cool down enough.
Yes, rotors can warp but it's so uncommon the answer is rotors don't warp. To get a rotor to warp they would be literally glowing at some point in their life.
Even in street driving the brakes get hot. When you come to a stop and keep your foot on the brake some of the pad can stick to the rotor. By stopping before you need to and slowly creeping forward the pad and disk won't be sitting together long enough to fuse. By the time you are done creeping forward a couple of feet they cool down enough.
Yes, rotors can warp but it's so uncommon the answer is rotors don't warp. To get a rotor to warp they would be literally glowing at some point in their life.
06-17-2014, 12:18 PM
#30
Le Mans Master
06-17-2014, 01:12 PM
#31
Instructor
If there's something going on with the rotors, I personally wouldn't want them turned but that's just me. I would ask if you could get replacements if possible if it comes down to that. I had rotors turned before, worst thing I could have done for my brakes. My braking regained smoothness but I lost a ton of bite and faded much quicker than before (3800lb Mustang with me in it out of all things...not a pleasant experience stopping that pig). I sucked it up and got new DBA 4000's and HP+'s. But in the end, it was worth it.
06-20-2014, 07:11 PM
#32
Glad to hear they ordered the part. Thanks for keeping me posted. I look forward to a good end result – you cruising happily for the rest of the summer!
Have a great weekend,
Austin J.
Chevrolet Customer Care
06-24-2014, 02:38 PM
#33
Supporting Vendor
Rotors don't warp on street cars. You have uneven pad deposits from mild and uneven braking.
http://www.stoptech.com/technical-su...nd-other-myths
http://www.stoptech.com/technical-su...nd-other-myths
Correct.
If you heated it enough to warp it there would be evidence i.e. blue rotors or grooving etc.
Proper pad bedding to get a uniform transfer layer helps.
Random hard use especially when pads are new is the worst case (uneven or rapid heating of pads/rotors)
-Ken
07-01-2014, 09:37 PM
#35
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rear rotors replaced
My car (which is a Z51) is at the dealer with the same issue. They just called, found the rear rotors warped, new pair on their way for installation tomorrow.
Another on this thread had the every same issue he also had his rear rotors replaced.
Another on this thread had the every same issue he also had his rear rotors replaced.
07-01-2014, 09:52 PM
#36
Everyone needs to learn how to bed pads, that's why all of you are having issues. All performance brakes need to have the brakes bedded or you will get material bonded to the rotor which will simulate a "warped" rotor.
The article is accurate, 95% of all warped rotor diagnosis is wrong, it's the uneven pad material distribution that's bouncing the dial gauge. Stoptech's article isn't the first time this has been put forward. I recall a Porsche engineer having the same discussion at a club event 20 years ago.
The article is accurate, 95% of all warped rotor diagnosis is wrong, it's the uneven pad material distribution that's bouncing the dial gauge. Stoptech's article isn't the first time this has been put forward. I recall a Porsche engineer having the same discussion at a club event 20 years ago.
07-03-2014, 05:45 PM
#37
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Rotors Replaced
Pads were not replaced just sanded. GM would not cover replacing pads at the same time under warranty. Problem is definitely reduced except at very slow rolling stop. I expect that after seating the pads this should be resolved.
TRC7
07-03-2014, 08:01 PM
#38
Safety Car
I have 4,400 miles and I'm experiencing the same issues with my breaks. Very interesting.
07-04-2014, 04:48 PM
#39
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I had taken the pads removed and sanded the crap out of them two weeks ago, which did not fix the issue which is why I took it in the dealer a few days ago.
I'm going to have to take it back in next week as this is spoiling my driving experience.
07-04-2014, 04:52 PM
#40
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Had my car back now for two days after having new rear rotors (not pads) installed, still feels the same, still feels like pulsing/warped rotors. And like others have said, mostly on slowing/rolling stops.
I had taken the pads removed and sanded the crap out of them two weeks ago, which did not fix the issue which is why I took it in the dealer a few days ago.
I'm going to have to take it back in next week as this is spoiling my driving experience.
I had taken the pads removed and sanded the crap out of them two weeks ago, which did not fix the issue which is why I took it in the dealer a few days ago.
I'm going to have to take it back in next week as this is spoiling my driving experience.