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."
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2004 Ford F-150
Question: Wet spark plug
Answer #1Brian Glastetter February 23, 2011, 19:52Master
Question: is the oil you see on the outside of the plug or on the inside (electrode)?
Replyrogerwhanneman, February 23, 2011, 19:56Rookie
Mostly the outside, not sure if the electrode was wet, but it looked good.
ReplyBrian Glastetter, February 23, 2011, 20:25Master
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 #2mastertech6371 February 23, 2011, 19:53Master
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.
Answer #3rjkrizzle February 23, 2011, 21:58Enthusiast
this would be a bad valve cover gasket.
Replyrogerwhanneman, February 27, 2011, 04:27Rookie