Originally Posted by SSEBONNE4EVA
Yes there is an O ring on the outside body of the PCV.
Yours might be stuck down in the hole.
Getting back to that O-ring again....is there a part number or size that anyone has written down? I've checked again and there definitely is no O-ring on my PVC. The only seal is the one which is between the PVC cover and the supercharger, and that one is a bit ripped. When i called my GM partsman, he said there was no O-ring, then when i asked him if he was sure, for a supercharged engine...he finally said that there SHOULD be one, but he didn't have it. I'm still looking for one, since i probably should replace the PVC and get it set up right this time. Don't know if that kills gas mileage but mine has certainly been down the last year over what it was the previous 3 years. Thanks all.