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Loud rattle noise in REVERSE ONLY

Loud rattle noise in REVERSE ONLY

Postby Tdevil76 [OP] » Dec 31 2011, 7:28am

Hello,

I have a 2003 Silverado LS 5.3L extended cab w/ apprx 110k miles. A little while back, I noticed a loud rattling/vibration noise that seemed to be coming from the rear of the truck. The wierd part is I only hear it when the truck is moving in reverse. Not in park, not sitting still with trans in reverse, but only while moving in reverse. No noise going forward either.

My first thought was maybe something with the rear differential :?:

If anyone has any thoughts or input on what may be the cause of this racket, please advise.

Thanks,
Mike
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Re: Loud rattle noise in REVERSE ONLY

Postby ASTE25 » Jan 02 2012, 9:34am

What kind of a rattle is it (deep and hard sounding, or light and tingy sounding)? What makes you think it is in the rear end?
Jordan
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Re: Loud rattle noise in REVERSE ONLY

Postby Tdevil76 [OP] » Jan 02 2012, 7:21pm

I'm gonna have to go with more of a light and tingly type noise.
As far as what makes me think it's comin from the rear end...that's where it sounds
Like its comin from :D
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Re: Loud rattle noise in REVERSE ONLY

Postby ASTE25 » Jan 02 2012, 9:31pm

It could be a bad u-joint. Does it almost sound like you are dropping small pebbles on a tin roof (kind of, maybe a little more "sharp" sounding?
Jordan
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Re: Loud rattle noise in REVERSE ONLY

Postby Tdevil76 [OP] » Jan 04 2012, 12:05am

I would say yes...sort of :)
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Re: Loud rattle noise in REVERSE ONLY

Postby ASTE25 » Jan 04 2012, 3:04am

Probably a bad u-joint. I would check them out first.
Jordan
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