Suspension Springs, Shocks, Brakes

How to know when you need new rotors?

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Old Nov 13, 2007 | 08:54 PM
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rallyracer's Avatar
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How to know when you need new rotors?

My car has around 19,000miles and I know I need to pads, but how do I know if need new rotors?

anyone???

Last edited by rallyracer; Nov 13, 2007 at 08:54 PM. Reason: Automerged Doublepost
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Old Nov 13, 2007 | 08:57 PM
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Replace them If they are grooved or warped
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Old Nov 13, 2007 | 08:58 PM
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Measure them. They are stamped with a minimum allowable thickness. If they are under that, then toss them. If they are decently over, then have them turned and put new pads on.
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Old Nov 13, 2007 | 09:06 PM
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If you feel shuddering when you are breaking, that would be a sign of warping and you should get rid of them. But at 19K, you shouldn't need either pads or rotors. Unless you drive very, very hard. lol
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Old Nov 13, 2007 | 09:08 PM
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My front rotors were groved bad by 30k miles, even though the pads were still ok I replaced both. I you don't replace the rotors have a shop turn them and see if they are still thick enough to be safe for another go around.
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Old Nov 13, 2007 | 09:12 PM
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Originally Posted by XM15
If you feel shuddering when you are breaking, that would be a sign of warping and you should get rid of them. But at 19K, you shouldn't need either pads or rotors. Unless you drive very, very hard. lol
i guess u havent watched his video's lol
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Old Nov 16, 2007 | 06:00 PM
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Originally Posted by ItalianJoe1
Measure them. They are stamped with a minimum allowable thickness. If they are under that, then toss them. If they are decently over, then have them turned and put new pads on.
Or if they have to much "run out"
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Old Nov 16, 2007 | 06:22 PM
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My cobalt seems like a death trap. Within like 2 months of owning the car, 3 people cut me off so bad that the anti-lock brakes kidded in leaving a rubber trail behind me. I'm at 18k rpm and my rotors are so grooved, I could change lanes just by applying the breaks
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Old Nov 16, 2007 | 06:33 PM
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Originally Posted by Switt23
My cobalt seems like a death trap. Within like 2 months of owning the car, 3 people cut me off so bad that the anti-lock brakes kidded in leaving a rubber trail behind me. I'm at 18k rpm and my rotors are so grooved, I could change lanes just by applying the breaks

18k rpm, damnn thats fast! you got a vtec engine or what!
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Old Nov 16, 2007 | 07:39 PM
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^ I think he's driving a F1 car
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Old Nov 16, 2007 | 08:26 PM
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lol I ment miles.
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