Question about 2002 Lincoln Blackwood

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Why would there be oil in my cold air intake in my Blackwood? It runs but barely and extremely rough idle. I thought I got some very dirty gas from a gas can my husband used to put gas in it after he changed the oil.We put a new massflow sensor in it and found oil in the air intake area. Also, the pcv valve was loose? Any help would be welcome and much appreciated. Thanks ..... I so love my truck!!! Diana S. Nebraska

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When oil is found in the intake it is most likely the pcv is malfunctioning. You say it is loose. The rubber it is seated in may be bad now that it has oil on it. You should replace the pcv and the rubber that it is seated in. If the problem continues then you may have the dreaded blow-by. In this case check all vacuum hoses for leaks. Blow-by means that your piston rings may be letting some compression past them. If so the pcv cannot pull the exess pressure from the crank-case. This usually requires new rings. At this point you need to deside if an engine re-fit is something you want to do or have done. This usually happens if the car i run low on oil or is over heated.Or running without/or bad breather filter.

Posted on Jun 23, 2009

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