I was thinking. If it isn't a hose, check to see if it is coming from under the intake. No coolant runs through the intake manifold, but the oil cooler (which is part of the oil filter housing) can also leak coolant. I attached a pic of what I'm referring to (pic 1). Number 3 in the pic is a heater hose attached to the assembly. I bet that is where it is leaking. The plastic will crack and leak coolant. Here is the part number.
Let me know. And yes, you have to remove the intake manifold. Recommend to the customer that they also replace the oil pressure and oil temp sensors. They commonly go bad and will then leak oil and set codes. The next thing will be oil leaking down on the bell housing. LOL (see pic 2)
Tomorrow is Labor Day. You shouldn't be working. LOL I hope the weather there is good and you aren't being hit by any hurricanes.
Take care and let me know what you find. By the way, I have a 13 Durango sitting in my driveway. Basically it's the same vehicle. I can look on it as well if you have questions.
Images (Click to enlarge)
Sunday, September 6th, 2020 AT 8:10 PM