willyC93

I have a 12 valve 5.9 in a 2000 F350 which has a crankcase pressure problem. It has a dual valve cover vent and the factory vent from the tappet cover. My oil drip is from the tappet cover vent, and nothing from the valve cover vent. I will try the front cover vent for added crankcase venting, and try to locate the source of crankcase pressure. willyC93