1996 Ford Explorer 6 cyl Four Wheel Drive Automatic
Was having problems with the Heater. Anyway I put a new thermostat in but the heater kept blowing cold air. Then after driving there was steam
on the paasenger side of the engine compartment
and the smell of cooking radiator fluid. Anyway I have traced it to this device that is not in Chilton's. It is the leaking culprit but I don't know what to call it. It has four coolant hoses hooked to it, it has a little arm that appears to move when the heater is turned to defrost, and has I think a vacuum line hooked to it.
I need the name of it can't seem to identify it. Can you assist?