My truck over heated and it wrecked my battery but while I was taking the radiator out I found a hose unplugged that did not go on the radiator, I followed it to the bottom of the engine, what is it connect to? Help !!!!


This is the hose and it goes to the bottom of the engine in the other picture I’m shining my flashlight from the front of the car down under the fan the hose goes into something way down there into something I can see when I go Under the car, what is it and where do I plug the other end in !?!???? Help thanks