Item 13 goes to the heater core, but I am guessing you need the one that goes from the heater valve to the heater core. Item 13 is a difficult hose to remove. However, If you find you are missing that hose, be sure to replave the plastic fitting it connects to. They break. When it does, you will overheat. There is another y-shaped plastic fitting on the back of the head which has the same problem. My car is 1995 so I don't have that one. I hear it is hard to replace due to limited space. |