Mechanics

NOISE WHEN IDLING

1991 Oldsmobile 88 • 180,000 miles

My 1991 Oldsmobile 88 Royale is making a noise that sounds like a fan blade hitting something when it idles, the noise stops when I accelerate. Any idea what might be the problem?
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Oreginal58
July 1, 2012.



You need someone to look under the hood to search for the source of the noise. If it's not obvious or easy to spot, use a stethoscope. Idler pulleys for the serpentine belt would the typical first thing to check.

Caradiodoc
Jul 1, 2012.
It does seem to be coming from that area, specifically the alternator area. A friend suggested it could be the bearings in the water pump, could that be the problem?
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Tiny
Oreginal58
Jul 1, 2012.
Remove the belt and spin them by hand also rock them to feel fore bearing play

Djcl
Jul 1, 2012.

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