Weird Fouling Problem

[asdco]

Hi, I have a 93 explorer with a bad plug fouling on 2 cylinders but it comes and goes. The engine runs fine for a few days then misfires a few days then runs good for a few days. It feels like those 2 cylinders are being flooded with oil then for some reason it stops flooding. Is it a pvc valve? plug wires? broken rings or what? I recently replaced warped heads on the engine and my wife drove it quite a ways with no water in it prior to replacing the heads.

 

[Masterd]

Could be a few things...

Before going after things like valve cover gaskets, etc....I'd pull the plugs and wires and make sure they're in good shape.

 

[Tbars4]

..What do the plugs look like and what cylinders are the problem???

 

[eXcali]

if it is intermittent like that I would look at changing the plug and wire before tearing into the engine.

 

[asdco]

will do in a few days after all this rain lets up lol.