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Old 10-17-2013, 10:19 PM   #18
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Great article, thank you! I know for a fact that I have not gotten them hot enough to warp and I am very careful to only park with the car in gear (no parking brake) so this makes sense. I had to assume that there is a break-in process that I was missing and my dealer wasn't doing. I'm taking it back in on Tuesday for an assessment and we will be discussing pad transfer.
Turn on your cell phone video. I want to see the Service Writers face when you start talking pad transfer Then again, there is more than one enthusiast working as a Service Writer in Chevy stores across the country
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Old 10-17-2013, 10:30 PM   #19
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Great article, thank you! I know for a fact that I have not gotten them hot enough to warp and I am very careful to only park with the car in gear (no parking brake) so this makes sense. I had to assume that there is a break-in process that I was missing and my dealer wasn't doing. I'm taking it back in on Tuesday for an assessment and we will be discussing pad transfer.
I understand your thought process, but the parking brake won't transfer material on our cars. The parking brake is actually a separate drum type brake inside the hat of the rotor. In fact, when I get my brakes REAL hot and have to come to a stop, I engage the e-brake to keep the hot pads off the rotors.
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Old 10-17-2013, 10:33 PM   #20
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I understand your thought process, but the parking brake won't transfer material on our cars. The parking brake is actually a separate drum type brake inside the hat of the rotor. In fact, when I get my brakes REAL hot and have to come to a stop, I engage the e-brake to keep the hot pads off the rotors.
The ebrake shoes don't like heat any more than the pads. After a cool down lap you should be OK to come to a stop in the pits, turn off the engine and leave it in gear.
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Old 10-17-2013, 10:39 PM   #21
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Yeah, but they aren't hot for one, they're tiny in comparison, and would transfer material nearest the center of the rotor where it has the least affect on rotor balance. I can't image those shoes causing any issues...
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Old 10-17-2013, 11:06 PM   #22
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Yeah, but they aren't hot for one, they're tiny in comparison, and would transfer material nearest the center of the rotor where it has the least affect on rotor balance. I can't image those shoes causing any issues...
I was thinking more along the line that the shoes for the ebrake will be compromised from the heat and not concerned about pad transfer with those shoes. This is just an opinion as I don't use my ebrake.
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Old 10-22-2013, 08:32 PM   #23
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Turn on your cell phone video. I want to see the Service Writers face when you start talking pad transfer Then again, there is more than one enthusiast working as a Service Writer in Chevy stores across the country
My service writer just gave me the look he always gives me when I give him my hypothesis on whatever the cause may be for the issue at hand

It turns out that the run-out on the r/f rotor is the issue. My assumption is that there is an issue with the wheel bearing seeing as how the l/f bearing failed and this is the 2nd rotor to fail in less than 10k miles.

They are digging into it.....

PS GM will not allow them to warranty the rotor again. If it turns out to be the bearing, and the rotor ends up being collateral damage, maybe then it will be warrantable........
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Old 10-23-2013, 01:28 PM   #24
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The Camaro front wheel hubs are from a truck chassis available in AWD. They have not been problematic to my knowledge. It will be interesting to see how this unfolds.
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Old 10-23-2013, 02:05 PM   #25
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The Camaro front wheel hubs are from a truck chassis available in AWD. They have not been problematic to my knowledge. It will be interesting to see how this unfolds.
My l/f bearing was replaced under warranty around 5k miles ago so that gives me reason to speculate that the r/f should be considered for replacement as well.
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Old 10-23-2013, 02:11 PM   #26
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My l/f bearing was replaced under warranty around 5k miles ago so that gives me reason to speculate that the r/f should be considered for replacement as well.
I understand.
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Old 11-26-2013, 11:05 PM   #27
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I know this thread is a bit old, but I was wondering...

I started hearing a kind of low, rotational squealing - not a high pitched squeal, but almost a "hum" - "whumm... whumm... whumm" that would change based on my speed coming from the front of the car. I had a suspicion of a bad wheel bearing at first.

I just put on my snow tires/wheels and I took the opportunity to try and "wiggle" the wheels to see if I could find the bearing that was going. None wiggled at all - rock solid. I did notice that it seemed like my brake pads were still engaged and the rotor was hard to spin. I wiggled the rotor and kind of moved everything around. It all seemed to loosen up and now the noise seems mostly gone when I drive. It might still be there - it's faint enough to question whether I'm hearing it or not.

Am I seeing "warped" (uneven pad material deposition on the) rotors? Is that what I've been hearing?

I'm out of bumper to bumper by a long shot, but would this be something the dealer would look at under powertrain warranty?
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Old 12-01-2013, 01:07 AM   #28
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My replacement rotors were covered under the powertrain warranty at 60k+ miles. It's worth a discussion with your dealer.
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