Question about Oldsmobile Regency

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Hello there There is a chattering noise coming from what sounds like the supercharger while it idles and at low rpm. When I give it more rpms the sound goes away, It is not any of the pullies, I've looked at them. How do I know if it is in fact the supercharger, and if it is, is it possibly only the noes dirve. Otherwise it still runs fine except for the annoying noise. The car is a 1994 Olds 98 V6 3800 supercharger Thank you John C

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The chattering sounds like some thing loose,like a mounting bracket. or the shafts end play is excessive,there can be bearing failure at high mileage in the supercharger, The bearings are lubed by the engine oil while running check for oil leaks in the line to the supercharger.

Posted on Sep 17, 2010

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