On my 83 Cutlass, I'm looking for the vacuum control valves on the back of the AC control panel. I can find the 9 port and its on order. But I can't find anything on the 2 port that is connected to the temperature lever that controls the heater valve. When on MAX it allows 100% vac to heat valve to keep it closed.
Can Anybody help me find the two port?
Can Anybody help me find the two port?