2001 Ford Expedition oil in spark plugs

2001 FORD EXPEDITION
110,000 MILES • V8 • 2WD • AUTOMATIC
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DCASEY
  • MEMBER
  • 1 POST
i have a 2001 expedition the #4 cylinder is missfireing and there is oil on the plug autozone said that it is probly the valvecover gasket does that sound rigt to you?
Aug 5, 2008 at 6:52 AM
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MUSTANG87
  • ✓Experienced Mechanic
  • 261 POSTS
when u remove the boot /plug wire from plug does it come out with oil? or is it that it has oil on bottom side of plug when u remove it?possible the gasket is bad.its missfiring?do u have check engine light on?if its missfiring its possible that u have a bad coil on number 4 or any other.each plug wire comes with a coil i believe.turn on the motor and disconnect each coil 1 by one and see if it missfires,if it does that coil is good connect it back and check onother and so on.if one does nothing no missfire shake etc then thats the one that is bad.good luck.
Aug 6, 2008 at 10:37 AM
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