brakes still warped after changing whole front end.? - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


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Old 09-12-2007, 07:05 PM   #1
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Default brakes still warped after changing whole front end.?

2 wekes ago i put new rotors ,calipers, and pads on my front end and today it stills feels like my rotors are warped when i go to apply the brakes slowly....? has anyone experienced this b4.. or does someone have an idea of what else could be causing this... not 100% sure if its the front or back thats doing it now,,,? any ideas.?
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Old 09-12-2007, 07:30 PM   #2
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if you have new rotors that are warped, ill bet you bought the cheapies. those chinese piece of sheets are worthless. see if you can exchange them where ever you bought them and upgrade for something made here (or canada if ur desperate, j/k canucks). raybestos, wagner or something equivalent.
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Old 09-12-2007, 07:35 PM   #3
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did it do it right away after you changed them or is it starting to come back after these 2 weeks?

could it be a flat spot in a tire that is only noticable under braking?
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Old 09-12-2007, 08:17 PM   #4
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If the shake is felt in the steering wheel when you apply the brakes, then it is in the front rotors. If It shakes the whole car and you dont feel it in the wheel then it is from the back. I have seen brand new rotors that were warped right out of the box. Also, if you dont clean the rust and debris off the hub it wont let the rotor sit flat and can cause a pulsation. It can also happen if the tire isnt tightened in a star pattern
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Old 09-12-2007, 09:32 PM   #5
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Where did you get the rotors? In the past I have seen rotors that had an improper cut to the rotor... And being the the cut was not correct the rotor had an uneven surface...

If you can, mic the rotor at several point

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Old 09-12-2007, 09:37 PM   #6
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Quote:
Originally Posted by samueljackson
if you have new rotors that are warped, ill bet you bought the cheapies. those chinese piece of sheets are worthless. see if you can exchange them where ever you bought them and upgrade for something made here (or canada if ur desperate, j/k canucks). raybestos, wagner or something equivalent.
i bought the most expensive wagner rotors they had with oem calipers and wearever gold brake pads...
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Old 09-12-2007, 09:38 PM   #7
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Quote:
Originally Posted by GoldenBullet
did it do it right away after you changed them or is it starting to come back after these 2 weeks?

could it be a flat spot in a tire that is only noticable under braking?
it did it right away after i changed everything.?
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Old 09-12-2007, 10:09 PM   #8
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Quote:
Originally Posted by 88bonnsse
Quote:
Originally Posted by samueljackson
if you have new rotors that are warped, ill bet you bought the cheapies. those chinese piece of sheets are worthless. see if you can exchange them where ever you bought them and upgrade for something made here (or canada if ur desperate, j/k canucks). raybestos, wagner or something equivalent.
i bought the most expensive wagner rotors they had with oem calipers and wearever gold brake pads...
well quaity is not the issue here. but warped or bad finishing cut could be possible.

as "theDude" mentioned, was there rust on the hub? sometimes that can cause a lil pulsation, but thats usually an "all the time" vibration.

do you have a micrometer? and does the place where you bought the rotors, turn rotors?
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Old 09-12-2007, 10:16 PM   #9
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Would these be the rotors from Advance?

Have you driven far enough for the surface of the rotors to break in( smooth out a bit )...?

Mic those rotors... If any one point is thicker than another take them back and get them exchaged...

If you got these from advance, i believe the best Rotor you can get from them is the Bendix Rotor..

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Old 09-12-2007, 10:27 PM   #10
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If your e-brake works then you can see if its the rears causing the problem really easy - use the ebrake to stop. If the car shakes then its definitely the rear drums.
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