My PCV valve has oil in the line, which means its getting into my intake mani. I replaced the original leaky PCV and the new one I installed is getting the same blowby. I removed the new one thinking it was bad out of the box but when I shook it and blew into it i could hear the valve rattle. Im wondering if my stock 4g64 has a crank breather element I need to change but I cannot find it. Any insight from you fine fellows?