Pictures will explain it more easily but i have antifreeze leaking right out of some kind of a breather hose underneath my cab, passenger side right where all the AC lines go in....its leaking more in colder weather and it has been doing it for a while with no issues. Am not noticing that am loosing any coolant at all...its a DD60, 400K miles, 475hp.
What is this hose called and what is its purpose?