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05-12-2015, 01:56 PM
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#1 |
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Registered User
 
Join Date: Apr 2007
Location: Acworth, GA
Posts: 441
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Diagnosis help
Not all the time, but I am hearing a tinny rattle during acceleration from under my blazer. Sounds like a squeaky bed...hard to describe. Friend thinks bad U joint in the rear. I know it's not a lot of info but would a bad U joint make that metal-on-metal noise during acceleration? Quiets down when up to speed.
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05-12-2015, 02:14 PM
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#2 |
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Registered User
Join Date: Feb 2003
Location: Santa Ana, CA
Posts: 2,191
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Re: Diagnosis help
Is it a rattle or a squeak? Yes, worn u-joints can squeak if it is lacking grease or if the needle bearings are damaged/missing. However it could be anything from a wheel bearing to a loose exhaust coupling to a body mount. You need to better pinpoint the location of the noise in order to narrow down the search. If I had a nickel for every squeak and rattle that came out of my Blazer i'd be a rich man.
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05-12-2015, 02:23 PM
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#3 |
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Registered User
Join Date: Apr 2007
Location: Acworth, GA
Posts: 441
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Re: Diagnosis help
Yea I need to pinpoint it better, but it happens intermittenly...driving me nuts.
I'll grease it, if needed, and see if it affects it any. |
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05-12-2015, 06:06 PM
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#4 |
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Wide n'Low
Join Date: Jan 2007
Location: La Center, WA
Posts: 1,511
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Re: Diagnosis help
You might also check to see if you have anything hanging up periodically in the rear drums, such as a spring touching/rubbing.. or possibly the pads wearing near the wear indicator?? just a thought
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