Crap...what is making this sound... - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


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Old 06-01-2006, 05:26 PM   #1
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Default Crap...what is making this sound...

This morning my brakes felt spongey. When I got home I checked the MC, it is full and it wasn't leaking anywhere. I kept driving and I hit a pothole (not badly) and then the car started making this scraping sound consistent with the speed of the car. In reverse it is way louder and much more noticeable.

Here is a video. (10mb - wait for the second reverse)

http://members.shaw.ca/bonneville01/MVI_0009.avi

EDIT: It'* loud in both forward and reverse gears...coming from rear passenger side tire. Parking brake can barely engages as well.
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Old 06-01-2006, 05:31 PM   #2
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Linky isn't working for me (not that I would have been much help, anyways )
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Old 06-01-2006, 06:26 PM   #3
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Sorry...works now...
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Old 06-01-2006, 06:29 PM   #4
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Discs or drums in the rear?

-IKZ
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Old 06-01-2006, 06:33 PM   #5
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YUCK....That sounds pretty nasty!
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Old 06-01-2006, 06:51 PM   #6
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Check the dust/heat shields on the back of the rotors. You probably bent one and it'* dragging on the rotor. Either that or the ...... Holy ****. Just listed to the vid.

That'* sounding more like axle or differential damage.
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Old 06-01-2006, 07:00 PM   #7
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Ewwww.....that can't be good. Might need to jack up the car and spin each wheel to see if it can help isolate the noise on one wheel or another. Could also do the 6 and12 O'clock/9 and 3 O'clock wheel test to see if there is any play from a wheel bearing or ball joint.
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Old 06-01-2006, 07:47 PM   #8
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Well, I tested the side the sound was coming from, and sure enough something ain't right.

http://members.shaw.ca/bonneville01/MVI_0015.avi

It barely turns on its own, I give it a push and it stops a second later. Not to mention that sound. Possible something inside the drum is f'd up? The brakes feel strange and the parking brake can't even hold the car still when it'* idle. And it mashes all the way to the floor. I am REALLY hoping this isn't going to cost too much.

Story of my life. Payday today, and I got paid back some money someone owed me. Then this happened an hour later.
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Old 06-01-2006, 07:51 PM   #9
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Parking brake is engaged and dragging in the drum? Trace the parking brake cable...maybe a bracket on the parking brake line got bent when you found the pothole and is causing tension on the cable and engaging the parking brakes.
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Old 06-01-2006, 08:23 PM   #10
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Quote:
Originally Posted by captainmiller
Well, I tested the side the sound was coming from, and sure enough something ain't right.

http://members.shaw.ca/bonneville01/MVI_0015.avi

It barely turns on its own, I give it a push and it stops a second later. Not to mention that sound. Possible something inside the drum is f'd up? The brakes feel strange and the parking brake can't even hold the car still when it'* idle. And it mashes all the way to the floor. I am REALLY hoping this isn't going to cost too much.

Story of my life. Payday today, and I got paid back some money someone owed me. Then this happened an hour later.
It'* not serious, you've broken a return spring. take the drum off and replace the shoes and the metal hardware that has turned blue from heat.

shouldn't be all that much.
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