97 Explorer OHV misfiring.

[bluecoor]

Hi everyone I have the dreaded misfire po303 and po300 and little coolant loss tried new plugs lasted 2 months new wires and coil problem is back pulled plug on #3 wet with gas getting 02 sensor fault but that is because of raw fuel going into cat converter is my problem intake gaskets or cylinder head problems or something else 4 liter ohv only 95000 miles on engine thank for your help

 

[BrooklynBay]

Welcome to this forum! Did you check the fuel pressure? It's possible that it might be the camshaft or crankshaft position sensors. As for the leaking coolant, did you do a compression test, and a cooling system pressure test? Did it once overheat? If so, maybe the head gasket might be responsible for the coolant problem.