What will cause oil to get into the intake ports and really gunk it up? There is only 1 dirty piston, #4 all the rest look fine. clean port Dirty port
Lack of or damaged/dirty/full PCV, positive crankcase ventilation, valve or filter upstream of the valve, but i haven't checked the FSM for it's location or existence...
I have been looking through the FSM for a while trying to find just that. Can't seem to find it. Any help would be greatly appreciated.
