03 astro van noise

85,000 MILES • 6 CYL • AWD • AUTOMATIC
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ABSMJR
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  • 2 POSTS
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 5:06 AM
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MMPRINCE4000
  • ✓Experienced Mechanic
  • 8,548 POSTS
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 7:03 AM
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ABSMJR
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  • 2 POSTS
Thank you.
Nov 14, 2010 at 7:24 AM
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