what is the cause of large amounts of oily soot build up in the intake manifold?

110

Asked by thumbs Sep 04, 2012 at 12:23 AM about the 1998 Saturn S-Series 4 Dr SL1 Sedan

Question type: Maintenance & Repair

2,705

Alex answered 12 years ago

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.

Mark helpful

garagerat answered 12 years ago

Thanks for your help. I cleaned both the PVC and the intake manifold.

Mark helpful

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what is the cause of large amounts of oily soot build up in the intake manifold?

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what is the cause of large amounts of oily soot build up in the intake manifold?

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