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2006 GX470 crankcase vents other than PCV valve upper oil pan leak

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Vikingship
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Default 2006 GX470 crankcase vents other than PCV valve upper oil pan leak

Hi Folks.
I have a very slow leak from what I think is from the upper oil pan, but I'm not 100% sure thats where its comming from.
Dosn't lose tthat much oil but of course makes a mess. Are there any other valves, vachume hoses, issues that if where plugged would cause the leak.
The PCV valve flows freely. I have replaced the valve cover gaskets two years ago and I just retorqued them. Don't see any oil around them at all.
The rear main seal is dry. The oil eventually ends up around the lower oil pan area and drips on the skid plate.
Thanks for any ideas out there.
Erik
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