Description: Before you ask, the heater core leaks, which is why the hose is looped. Did you know, if you don't have the little cross-over hose connected up correctly, the temp switch in the intake won't trip the fan correctly? I found that out, almost too late. Luckily for me, it was only about 45 degrees out the day she nearly overheated. I know I am lucky I didn't hurt something, good thing these little motors are tough as nails!