Saturated 4.0 intake manifold

Ibreakeverything

New Member
Original poster
Joined
Nov 21, 2020
Messages
3
Location
Ohio
I have alot of moisture on my intake manifold top and bottom at the back and at my exhaust manifold where it bolts to the engine. The exhaust smokes from the headers to the y-section of the exhaust for a few minutes at first start of the engine. Seems to be using more gas than usual and a slight rough idle. I just finished replacing the valve cover gasket. After searching forums and internet I think it might be a exhaust manifold gasket but the moisture is what puzzles me. Doesn't seem to be using coolant. Thanks

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Did you verify that replaced valve cover gasket stopped the leak?
My manifold was just as wet on the bottom from oil, and that oil was dripping on 02 sensor which consequently was making it malfunction.
 
Did you verify that replaced valve cover gasket stopped the leak?
My manifold was just as wet on the bottom from oil, and that oil was dripping on 02 sensor which consequently was making it malfunction.

Replacement of the valve cover gasket did stop a leak at the valve cover, this current condition was noticed shortly after I replaced the valve cover gasket. Thanks for responding.
 
I have alot of moisture on my intake manifold top and bottom at the back and at my exhaust manifold where it bolts to the engine. The exhaust smokes from the headers to the y-section of the exhaust for a few minutes at first start of the engine. Seems to be using more gas than usual and a slight rough idle. I just finished replacing the valve cover gasket. After searching forums and internet I think it might be a exhaust manifold gasket but the moisture is what puzzles me. Doesn't seem to be using coolant. Thanks

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You figure out what it was? I have to replace my VCG as well.