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Shawn, Auto Service Technician
Category: Ford
Satisfied Customers: 3756
Experience:  16 years experience Ford,Nissan and Honda dealership in all areas
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Why would I have oil in the spark plug port?

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Why would I have oil in the spark plug port?



Thanks for using Just Answer, the most common cause of the problem you are having is a leaking valve cover gasket, causing oil to leak down in the hole`, therefore causing a misfire, I am sending you instructions on how to replace in pdf format, hope this helps you out.









If the plugs are fouled up with oil then the likely cause will be worn or defective piston rings, see below.




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