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I might have done a bad thing.....hoping for help.
Have a 2012 FL2, 2.2 diesel. I was changing the oil filter (who in their right mind designed that location???). Upon putting it back in and tightening it from underneath, I see a clear tube pointing downwards at me, between rad and engine block.
I've attached a photo taken from above with the tube now pointing up. I could not find a suitable place to plug it onto. Is it just a drain pipe from something?
Other photo shows where the connected ends heads to. Both photos have the rad to the bottom.