Question about 2000 Chevrolet Blazer

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Whini.ng when in movement, doesn't whine when parked or neutral

I have a 2000 s10 Blazer, it has a whining under the hood when in movement. I had transmission serviced and it still whines. A road test was done by a transmission specialist with 48 years exp. and it passed. I took off serpentin belt and it still made that whining noise. What is the problem? Do I need a new transmission?

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It may not be your trans at all. Look in the wheel wells for any loose plastic panels/mud flaps that may be hitting the tire. Give a slight tug on those panels to see if they are loose. Many times a loose panel will only contact the wheel when there is air moving to push it into the tire.

Posted on Mar 01, 2009

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Posted on Jan 02, 2017

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