Hey guys, first time posting. I just installed a level kit in my 2010 Z71 Suburban and in the process I looked into an oil leak that just showed up in the past month. It is coming from my oil cooler right where the oil cooler attaches to the engine just above the oil filter. The reason for my post is that I have done research all over the internet to try to find information similar to this and have only came up with leaking hose repairs and leaking block off plates. My leak is coming from what looks like a plug with a large allen key in it. Does anyone know if this is a threaded plug that I can just tighten or if it has an o-ring? I would have tried to tighten it but I will have to take off the 2 10mm bolts and remove the cooler to try it because it is really tight and I want to be prepared before I do it. I attached a picture from a new cooler with a blue arrow pointing to the spot that is leaking. It is leaking quite a bit when the truck is running. I just had to add a quart of oil. Thank you for your help.
Update: I just added a few pictures of the actual leak.
Update: I just added a few pictures of the actual leak.
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