what is the cause of large amounts of oily soot build up in the intake manifold?
Blocked or clogged PCV valve
Its caused by the PCV and that little tube coming off of the right hand side of the valve cover. Its not hurting anything, so dont try to clean it off. I have to use a power washer to get those suckers clean. Also, it doesnt mean the pcv is clogged. Its normal on all turds.
Thanks for your help. I cleaned both the PVC and the intake manifold.
Looking for a Used S-Series in your area?
CarGurus has 1,007 nationwide S-Series listings starting at $1,850.
Search Saturn S-Series Questions
Saturn S-Series Experts