Wet spark plug on 2004 Ford F-150

When I went to change the plug in my 4.6 it was soaking wet with what appears to be motor oil. Where would this be coming from? I pulled it do to a "#6 cylinder misfire first 1000 rpm engine code."

by in Corpus Christi, TX on February 23, 2011
3 answers 3 comments
ANSWER by on February 23, 2011
Question: is the oil you see on the outside of the plug or on the inside (electrode)?
COMMENT by on February 23, 2011
Mostly the outside, not sure if the electrode was wet, but it looked good.
COMMENT by on February 23, 2011
In this case, Roy would be correct. It probably is a leaking valve cover unless oil was spilled at one time. Any liquid seems to find the way to the bottom of the spark plug area.
ANSWER by on February 23, 2011
the valve cover seal for the tube is allowing oil into the plug hole contaminating the coil boot. i would replace the valve cover gasket, and the coil. Roy
ANSWER by on February 23, 2011
this would be a bad valve cover gasket.
COMMENT by on February 27, 2011
Thank you
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