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01-25-2008, 07:23 AM
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#1 | |
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AF Newbie
Join Date: Jan 2008
Location: greenville, South Carolina
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1997 GMC Suburban 4 x 4 Whining Noise from..
The rear differential ( i think) makes a high pitched whining noise when under acceleration.It sems to be tied to putting the drive train under torque.When I let off the accelerator and coast the whining stops and resumes when I accelerate again.
Help please? What is causing this? Thanks |
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01-25-2008, 02:54 PM
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#2 | |
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A990 racer
 Join Date: Mar 2002
Location: Chestertown, New York
Posts: 17,048
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Re: 1997 GMC Suburban 4 x 4 Whining Noise from..
Welcome to AF, tough to diagnose noises from this desk, your description sounds like a possible pinion bearing. Find someone familiar with this type of problem to road test the truck for a more definitive diagnosis. The diff. is full I assume.
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01-25-2008, 04:24 PM
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#3 | ||
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AF Newbie
Thread starter
Join Date: Jan 2008
Location: greenville, South Carolina
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Re: 1997 GMC Suburban 4 x 4 Whining Noise from..
Quote:
Thanks and yes. Actually I had the diff. cover taken off today and re lubed to check for damage. My repair shop says "replace the whole rear end" At $2000-$2200 He says the cost to replace the gears and bearings is close to the whole replacement. I am getting a second opp on it for sure. Thanks for your help |
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