Question about 1999 Buick Regal
This is simple!!! I had the same problem in my GS. The part is called the supercharger coupling. It is made of nylon and can't be bought from the dealer BUT can be found in Ebay for about $30. This is a NEW part for the Eaton M90 supercharger. That is all it is!! The holes in the coupling wear slightly oblong creating a little bit of slop and it sounds TERRIBLE.
Be careful with the sealing surfaces behind the supercharger snout, reseal with a gasket maker (Loctite makes some) and refill with the correct fluid.
Posted on Aug 05, 2010
That sound is worn bearings in the supercharger
replaced the unit is best to do before it locks up
Posted on Jul 31, 2010
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Posted on Jan 02, 2017
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