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Old 07-12-2014, 10:32 PM   #1
Schmo Z
 
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Smile Rear end noise when going over bumps on the road

Does anyone's rear end sound like it rattles when on a bumpy road. It almost sounds like cables or linkage bouncing around against something. Sounds loose. I know it's a very poorly worded question and will probably bring some poor answers. Thanks for the GOOD answers.
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Old 07-13-2014, 02:39 AM   #2
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actually I hear the same in mine and was gonna have it checked out. I jacked it up and put it on stands to give it a look over and to my eye can't see anything wrong. That and I get a weird humming sound when I turn slowly like in a parking lot also coming from the rear
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Old 07-13-2014, 06:07 AM   #3
CanadianZL1#992
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Quote:
Originally Posted by PonyKiller74 View Post
actually I hear the same in mine and was gonna have it checked out. I jacked it up and put it on stands to give it a look over and to my eye can't see anything wrong. That and I get a weird humming sound when I turn slowly like in a parking lot also coming from the rear
The humming sound is probably your limited slip diff. Mine started doing it at about 5000 miles. I changed the fluid again and the hum disappeared.
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Old 07-13-2014, 07:38 AM   #4
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Originally Posted by PonyKiller74 View Post
actually I hear the same in mine and was gonna have it checked out. I jacked it up and put it on stands to give it a look over and to my eye can't see anything wrong. That and I get a weird humming sound when I turn slowly like in a parking lot also coming from the rear
If you happen to take it in can you post what they found? Thanks
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Old 07-13-2014, 09:22 AM   #5
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Originally Posted by Schmo Z View Post
Does anyone's rear end sound like it rattles when on a bumpy road. It almost sounds like cables or linkage bouncing around against something. Sounds loose. I know it's a very poorly worded question and will probably bring some poor answers. Thanks for the GOOD answers.
I hear a rattling sound when driving through a dirt parking lot slowly. The sensation is that something is loose between the wheels and chassis. To be honest I have no idea where it comes from or what it could be. I'm guessing it is the same thing you have.
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Old 07-13-2014, 09:47 AM   #6
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It could be the rear springs a buddy of mine had an odd sound from the rear of his 13 ZL1. It was like a creaking sound it turned out to be his drivers side rear spring. GM replaced it no issues since.
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