70 GS Heater Hose Routing w/ AC

Discussion in 'The Big Chill' started by 12lives, Apr 22, 2019.

  1. StfSocal

    StfSocal Well-Known Member

    Stupid question but what does the water valve assembly even do?
     
  2. copperheadgs1

    copperheadgs1 copperheadgs1

    It uses vacuum to shut off hot water to the heater core when the air conditioner comes on.
     
  3. scubasteve455

    scubasteve455 Well-Known Member

  4. scubasteve455

    scubasteve455 Well-Known Member

    The hose that can screw you up is the small hose going to the water valve
     
  5. copperheadgs1

    copperheadgs1 copperheadgs1

    Not if you follow the chart!
     
  6. 12lives

    12lives Engage! - Jean-Luc Picard

    Water Valve: Not just when AC is on but when the temp slider is all the way to cold. There is a vacuum valve on the slider that closes the water valve. So you can run AC with some heat to get rid of steamed up windows in colder weather.
     
  7. scubasteve455

    scubasteve455 Well-Known Member

    AAAAAAhhhh. Said the blind man to his Deaf son on the phone.
     

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