The heater on my Armada apparently no longer works. My mechanic was told the control box which runs some part that is connected to two hoses no longer works. We had the control box replaced and apparently the car still does not put out heat.
Is it possible that something as simple as the wires that connect the control box to this part that connects these two hoses?
Is this automatic tem p control as that is all the list. Have all the fuses been checked there some at right side of dash along with the av control that picks up from the pcm. This may have to be scanned to find out what is really wrong.