A/C vacuum switch
I'm in the process of re-doing my a/c heater box with new door foams, seals and whatnot. I've also modified the A/C portion of the blower box to eliminate the A/C while still providing a functional heater and defroster. My question relates to the switch that directs the vacuum source to the various vacuum actuators. It seems as though these would be prone to leaking.
Do these A/C heater control switches ever develop a vacuum leak? If so, has anyone ever installed a small ball valve on the vacuum supply side to prevent these leaks while not in use? I was thinking about putting a small ball valve behind the dash to cut off vacuum from the switch when not in use so if I ever wanted to run the heater/defroster, I could just open the valve to provide a vacuum supply. Or even maybe use a 12v solenoid valve instead of a manual ball valve
I'm in the process of re-doing my a/c heater box with new door foams, seals and whatnot. I've also modified the A/C portion of the blower box to eliminate the A/C while still providing a functional heater and defroster. My question relates to the switch that directs the vacuum source to the various vacuum actuators. It seems as though these would be prone to leaking.
Do these A/C heater control switches ever develop a vacuum leak? If so, has anyone ever installed a small ball valve on the vacuum supply side to prevent these leaks while not in use? I was thinking about putting a small ball valve behind the dash to cut off vacuum from the switch when not in use so if I ever wanted to run the heater/defroster, I could just open the valve to provide a vacuum supply. Or even maybe use a 12v solenoid valve instead of a manual ball valve
