» » »

Ford Q&A

Ask Your Question

2004 Ford F-150 Question: Wet spark plug

 

Question

rogerwhanneman, 4.6L V8, Corpus Christi, TX, February 23, 2011, 19:48
 Rookie

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."

3 Answers
Flag This
  • Answer #1

    February 23, 2011, 19:52
    Profile_thumbnail
     Master

    Question: is the oil you see on the outside of the plug or on the inside (electrode)?

    Flag This
  • Reply

    rogerwhanneman, February 23, 2011, 19:56
     Rookie

    Mostly the outside, not sure if the electrode was wet, but it looked good.

    Flag This
  • Reply

    Brian Glastetter, February 23, 2011, 20:25
    Profile_thumbnail
     Master

    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.

    Reply
    Flag This
  • Answer #2

    February 23, 2011, 19:53
    Profile_thumbnail
     Master

    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

    Reply
    Flag This
  • Answer #3

    February 23, 2011, 21:58
     Enthusiast

    this would be a bad valve cover gasket.

    Flag This
  • Reply

    rogerwhanneman, February 27, 2011, 04:27
     Rookie

    Thank you

    Reply
    Flag This