I just took my fitting off and sure enough, it was plugged up. I cleaned it out and re assembled it, started truck with valve cover off and cound tell that there was more oil than before, but still not alot. How much oil should be splashing around in there anyway? It is like I could drive without a valve cover and only get a little mess. When I took the line off, I started truck to check oil volume at the line, and there was plenty spurting out.