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brake problem...whats the suspect?

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Old Feb 3, 2012 | 03:32 PM
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Default brake problem...whats the suspect?

Only when braking hard, I have a loud and violent vibration from the rear of my c5. I've been told three different things it could be:

Warped rear rotors
pads with uneven wear
the shoes for the e brake

What do you think? I wouldn't say the shoes cause the e brake isn't applied under normal braking. I just need to know the parts to order before putting it in the shop on a lift while I get the parts I need.
Im thinking warped rotors which of course would be new rotors and pads
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Old Feb 3, 2012 | 03:43 PM
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if its warped rotors, it's taken the pads with it. if it's uneven pads, its probably taken the rotors with it..

i'm not a mechanic, so i cant say for the ebrake, but ive never personally seen/heard of it dragging on hard brakes?

only time ive warped a rotor, it wobbled around on ANY braking, so going with a text based description, i'd say get the pads/rotors.

Originally Posted by dreww
Only when braking hard, I have a loud and violent vibration from the rear of my c5. I've been told three different things it could be:

Warped rear rotors
pads with uneven wear
the shoes for the e brake

What do you think? I wouldn't say the shoes cause the e brake isn't applied under normal braking. I just need to know the parts to order before putting it in the shop on a lift while I get the parts I need.
Im thinking warped rotors which of course would be new rotors and pads
Reply
Old Feb 3, 2012 | 06:38 PM
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Get it up in the air and check the suspension. Loose shocks, sway bar end link, etc. Without hearing it or seeing it it's hard to say. If you have a warped rotor you should be getting one side or the other to chirp as it grabs and then lets go when hard braking. Just my .02. Be safe, Rod
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Old Feb 3, 2012 | 06:50 PM
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the fact it only does it on hard braking is the only thing that made me hesitate. that could be something loose.. cus warped is warped, no matter the speed.
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Old Feb 3, 2012 | 08:13 PM
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Sounds like warped rotors to me.
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Old Feb 4, 2012 | 12:13 AM
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Warped rotor to me, too. It only takes one for the whole rear to feel bad. If you need rotors go to www.brakemotive.com. For the price of two, you can get four plus pads, shipped too. I previously had bad rotors and these cleared up my problem and are good quality.
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Old Feb 4, 2012 | 08:46 AM
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Simple enough to check for warp with a dial indicator....I'd not order parts without an inspection first.... GL
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