I am trying to diagnose why I have no heat. I found that the heater control valve that lets coolant go to and thru the heater core is not opening. I need to know what the part is that sends vacuum to the valve. This part is located on the accumulator. It has a 2 wire connector going to it and one vacuum line coming out of it that goes to the heater control valve. Thanks in advance.
have the same problem?
Wednesday, January 27th, 2010 AT 8:22 PM
I believe it is either a Vacuum Selenoid, Vacuum Pump or a Vacuum Switch.
Have you tested for power to the part in question.