4.0L oil leak

[Eric1971]

While changing the oil I was reminded that I have a very slow, minor oil leak from somewhere above the area of the oil filter. I only ever see it when I'm down there by the drain plug and filter. I've checked as much as I can and it does not seem to be the filter, filter adapter, drain plug, or oil pan/gasket. It looks like it's farther up than all those. I checked as best I could and don't see any leaks up top from the valve covers, or anything else I can see from the top, looking thoroughly with a light.

I'm betting one of you knows immediately where it probably is, or at least a few ideas where else to look.

Thanks!

 

[410Fortune]

valve cover notorious for leaking in that area
IF you have confirmed it is NOT the oil filter adapter to engine O ring as is coming from higher up.

 

[CDW6212R]

Ditto, snug the valve cover bolts, and the oil filter block adapter if you can. The VC gaskets are most likely, cork material doesn't seal long term very well.

 

[fast_dave]

Just sayin' - next time you're under there take a few pics to show us what you're seeing

 

[rasouth]

Could be coming from closer to the front of the engine and being blown back while driving, but most likely valve cover.

 

[Eric1971]

Thanks, I'll check again, snug the VC bolts and try for pics. When I checked this morning it was dirty oil starting to form a drip on the drain plug, so I think it's a slow journey from the leak source since it's had clean oil in there since Sunday.