I have an 88 jeep wagoneer. A few months ago i rebuilt it bored .30 over, with new cam pistons,what have you. it runs great, I'm having a problem with a large amount of pressre inside the vavle cover pushing oil throung the fill cap and, gromets on top. What could be causing this? is there something i may have missed?, what's a good fix for the problem?
Your PCV valve handles crankcase pressure. You might want to check to see if it is hooked up to manifold vacuum. You also need to check the valve to see if it is plugged. Hopefully this will fix your problem.
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