Hello I am new to the forum I have a 05 6.0 lariat and I replaced my oil cooler 300 miles ago and then all of a sudden oil began squirting everywhere. I torqued down all the gaskets so I didn't think it was one of those and then put a diagnostic camera in there and ran it and saw that oil was coming out of a small pin size hole? Continued to do some research and found out it is a weep hole but I do not know why its there and why it would be leaking. Please let me know, Here are some pictures. Thanks, Ethan

 

having the same issue , exactly !!! replaced mine , then noticed oil leak ..not bad at first but all of a sudden it began to pour , took of oil cooler noticed on nick in oil cooler gasket was on coolant side and did not appear to be leaking coolant . Postponed til i find out more .... do you have any insite into this yet ?

 

The two ports on the oil cooler have o-rings around the top. Bet that one got split/tore somehow.

 

so did any on figure out what this was. I am having the same issues