Here are my rotors
they feel pretty rough and i only have 4800 miles on my car sooo i really dont know what to do
http://i31.photobucket.com/albums/c3...1/DSCN0043.jpg |
hard braking + high metal content of pads does that. Only thing you can do to smooth them out is to get the rotors machined.
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i have never braked hard at all
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Originally Posted by revhigh18
(Post 3247051)
i have never braked hard at all
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yes sir
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take it to the dealer and tell them you feel a vibration when dlowing down on the hwy. Say you suspect the rear rotors are casuing this because..... and aske them to replace or turn the rotors.
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Originally Posted by bri2203
(Post 3247092)
take it to the dealer and tell them you feel a vibration when dlowing down on the hwy. Say you suspect the rear rotors are casuing this because..... and aske them to replace or turn the rotors.
Originally Posted by revhigh18
(Post 3247086)
yes sir
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GM sucks when it comes to brakes....
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lol i won't start anything but i know someone will be behind me shortly to remind u these are performance rotors and they will do that........ever heard of brake boosting? it also doubles as a way to machine your rotors, try it sometime and see how your rotors look after.
btw, my rear rotors look the same, i wouldn't ask GM to replace them unless they cause actual driving problems, otherwise it's just how the rear rotors are gunna wear..........u can lie all you want "duhhhh i didn't stop hard, not even once".....LIER, u don't realize that each time u stop your stopping hard already anyways because of the brake setup on the ss/tc. Beyond that, go ahead and try to lie about u NEVER stopping hard, not once rite? ok ya maybe once......if it was once, was it twice? three times? how many times till u will admit u stopped hard once or twice or multiple times?? Just get used to the rear rotors looking like that for the lifetime u own your car unless u can get frozen rotors, they are hard to groove(cryo treated) |
as opposed to running and bitching about the brakes(which suck), i'm just going to upgrade them, no point in going to the dealer and have them throw the same junk back on... may cost me $600-800 but it'll be worth it in the end
my rear rotors look terrible and I don't ride the brakes at all |
My rear rotors are starting to leave grooves [ Cheap Steel ] some pictures http://i135.photobucket.com/albums/q...2-26-08020.jpg http://i135.photobucket.com/albums/q...2-26-08020.jpg http://i135.photobucket.com/albums/q...2-26-08019.jpgWill upgrade rear brakes with better rotors
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Brakes groove.
Period...my LE5 balt did, look at any other Chevy, they aren't mirror finished. |
Mine looked bad also (deep grooves) within the first 8-10,000 miles and GM wouldnt do anything when I showed them. But I have over 39000 miles and they dont look as bad anymore and I dont have any problems with them. Same brake setup from when the car was bought. Rotors look fine now and I still have plenty of pad left. They did seem to make noise though when I first noticed the deep grooves. Thats just my experience with them
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Originally Posted by 2002z06
(Post 3249774)
My rear rotors are starting to leave grooves [ Cheap Steel ] some pictures http://i135.photobucket.com/albums/q...2-26-08020.jpg http://i135.photobucket.com/albums/q...2-26-08020.jpg http://i135.photobucket.com/albums/q...2-26-08019.jpgWill upgrade rear brakes with better rotors
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Originally Posted by 1WhiteSSTC
(Post 3250374)
that is unreal:thumbsdow:(
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Look like the rotors on both Cobalts I've had...
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Meh... I'll just wait until some aftermarket (OE fitment) hardware becomes available. Easier than arguing with my stingy local dealers...
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Originally Posted by 2002z06
(Post 3249774)
My rear rotors are starting to leave grooves [ Cheap Steel ] some pictures http://i135.photobucket.com/albums/q...2-26-08020.jpg http://i135.photobucket.com/albums/q...2-26-08020.jpg http://i135.photobucket.com/albums/q...2-26-08019.jpgWill upgrade rear brakes with better rotors
but maybe thts just how they look, i cant tell how deep those grooves are |
Originally Posted by 2002z06
(Post 3249774)
My rear rotors are starting to leave grooves [ Cheap Steel ] some pictures http://i135.photobucket.com/albums/q...2-26-08020.jpg http://i135.photobucket.com/albums/q...2-26-08020.jpg http://i135.photobucket.com/albums/q...2-26-08019.jpgWill upgrade rear brakes with better rotors
thats exactly what mine look like..only on the inside tho |
Could we stop quoting the pictures?
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Originally Posted by steddy2112
(Post 3250394)
Look like the rotors on both Cobalts I've had...
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Originally Posted by USMCFieldMP
(Post 3256745)
Could we stop quoting the pictures?
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Originally Posted by 2002z06
(Post 3249774)
My rear rotors are starting to leave grooves [ Cheap Steel ]Will upgrade rear brakes with better rotors
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It does sit maybe for 3 or 4 days sometimes but why don't the fronts do that or my other cars that sit, I fix cars for a living cheap ass steel. I looked at a new 2008 with rear disc when I bought my 2009 they looked liked they were in the ocean for years, also known among us mechanics as { Lot Rot }
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Originally Posted by 2002z06
(Post 3257721)
It does sit maybe for 3 or 4 days sometimes but why don't the fronts do that or my other cars that sit, I fix cars for a living cheap ass steel. I looked at a new 2008 with rear disc when I bought my 2009 they looked liked they were in the ocean for years, also known among us mechanics as { Lot Rot }
The fornts dont do it because they do much more work, even under very low effort stops the front brakes get to temp much faster and see more use. Your other cars dont do it because they are all older vehicles, older vehicles have different composition to the rotors, they dont rust as easy. Every GM vehicle short of a new DTS or a ZR1 will get corrosion on the rotors just from sitting a day or 3 depending on the weather. And for the 9 billionth time, to everyone who needs pads......have the dealer put on pads for a Solstice. If you switch out to HPS's the rust tracing issue will actually get much better. |
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