ok so i know i have a vacuum on the back side of my motor but in trying to find that i noticed my supercharger sounds like it has marles in it. is this normal? haven't really heard it before so not really sure if it is normal any help would be greatly appreciated.

Take a look at this write up, is this the sound your hearing?

https://www.gmforum.com/t279064/

ding ding ding we have a winner what does that cost to replace round abouts thanks a lot dan your the man

There'* a link in the write up for the parts. It'* $50 and about a hour of your time

sweet get it done this week thanks again

Is it vital to fix this? Is it a precurser to something breaking? It seems to only make that sound at idle. Car runs great besides the annoying noise when I'm stopped.

Actually it goes away when I give it the slightest gas. I was wondering if maybe the idle was set too low.

Over time the coupler will become more and more damaged. It'* also making a lot of noise that the knock sensors can pick up. It is something that can be put off for a while, but don't just let it go.

Hey Danthurs........It might be a good idea on your "change supercharge coupler" thread to warn those with 95 and ealier, the whole supercharger has to come out. If i had known all that, i might not have tried to attempt this myself.

Thanks, I'll add that in.

stooge5444, it also would be a good idea to update your signature to include your trim model and year. that way we can see what kind of car u are driving and help you better.