After reading some more post here, today I looked at my Air Filter and discovered some oil residue around it. Now I’m obviously not that mechanically inclined but I felt that there should not be oil in the area of the Air Filter, so I decided to search the forums for some more information. I found the following to be of interest as it describes almost in detail to what I discovered...
http://www.automotiveforums.com/vbul...light=oil+leak
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Originally Posted by wiswind
No, a stop leak will not help.
Take a look at the throttle body...is there oil on the bottom of it?.....I have that on my '96 3.8L. This is from the PCV line.
If I spray Sea Foam in the PCV line....I always get some back into the flexible air intake hose.
Make sure that you have a Motorcraft brand of PCV valve, as some aftermarket types permit too much air to pass through...with pulls excessive oil with it. If you have a motorcraft brand PCV valve, do not do anything to reduce the PCV flow....as that flow it taking contaminates out of the crankcase....keeping things clean in there.
On the '96 3.8L, the PCV valve is in the rear valve cover....and the air flows in through the front valve cover.
If you are getting oil in through the plastic line that connects to the rear of the flexible air intake hose.....about 1/2 way between the throttle body and the MAF....then you most likely do not have PCV flow....and will need to correct that.
I have considered installing a unit to remove the oil from the air flowing through the PCV line...without reducing the flow.
Take note of the fact that a number of lines tap into the line that goes from the top of the upper intake manifold....next to the throttle body......and the PCV valve....Including the EGR vaccum source, and the charcoal canister purge.........
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I did install an aftermarket PCV valve sometime back after I had made some of the other post here. I’ve got a Motorcraft PCV on order through O’Rielly’s and it should be here tomorrow and for only $5.49, so if this clears up my CEL I’ll be very happy. Still going to have to tackle that potential problem with the blend doors on the front/rear AC too, but at least with the vast amounts of information and some very detailed post I just think I might be able to handle this task too.
Many thanks.