Also when the coolant is at operating temp and the system gets pressure on it, move the small hose and see if coolant comes out. I had a truck that had a coolant leak and once I moved the hose coolant started shooting out of a pin hole sized hole. I would also get the cap replaced as well. And as people have previously said, fluids can move in crazy ways.
Last but not least, coolant can sometimes seal an area where it is leaking from once it dries up. So try cleaning up the coolant and put pressure on the system.
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Ford Diesel and Heavy Line Technician at your service. 
Last edited by Dreadnaught; 07-23-2016 at 07:41 PM.
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