What's wrong with my 2004 Nissan frontier 2.4 4cyl?

I went to change my spark plugs, and before I pulled any out, I found 1 full of oil. The other 3 are dry. Please help. 

5 Answers

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  • Anonymous
    2 months ago

    Replace the valve cover seal and plug seals.  Not hard to do.

  • M.
    Lv 7
    2 months ago

    Leaky valve cover seal.

  • 2 months ago

    The valve cover needs to come off and the spark plug tower seals replaced.

  • arther
    Lv 5
    2 months ago

    is the oil in the cylinder as in it  was running on 3 the electrode covered in oil or is the plug tube full of oil hence the rocker cover to plug tube o ring is leaking

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  • Rick
    Lv 6
    2 months ago

    cracked head gasket OR intake manifold gasket ...........   DO a compression test ...................

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