Oil around spark plug boots

Discussion in 'Transmission & Drive train' started by smount101, Apr 22, 2011.

  1. smount101

    smount101 Member

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    Just change the plugs and coil packs in my 2000 expedition last night. When I pulled the boots on 3 of the plugs and pulled the socket out with the old plug on it the socket was covered in oil. Only 3 of the cylinders looked like this. Put everything back together and runs fine just wondering where this oil would come from. Any ideas? Thanks
     
  2. Quevy50

    Quevy50 Member

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    Oil in Plug Holes

    What motor are you working on?
    Could be several things:
    (1) Oil spillage when changing oil. Oil that gets spilled on to the valve cover and the intake can seep into the plug holes.
    (2) Valve Cover gasket: If gasket on the valve cover is leaking on the intake side, oil can seep into the plug holes.

    I just fix the same problem on my 2000 Expedition by replacing the valve cover gaskets. It was a real pain in the azz!
     

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