03 astro van noise

2003 CHEVROLET ASTRO
85,000 MILES • 6 CYL • AWD • AUTOMATIC
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ABSMJR
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03 Astro Van AWD 4.3L 85,000mi.

I hear a whirring noise in the engine area when accelerating. Not loud but noticeable. I recently bought the van, and the noise was probably there then, I just didn't notice it until later.
Is this a common thing with this van, or something problematic that I should have checked out? Thanks for any help.
Nov 14, 2010 at 1:06 PM
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MMPRINCE4000
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Most likely a belt tensioner (bearing) is bad.

To check, on a cold engine, remove belt and run engine for 30 seconds, if noise goes away, then tensioner of other pulley bearing.
Nov 14, 2010 at 3:03 PM
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ABSMJR
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Thank you.
Nov 14, 2010 at 3:24 PM
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