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AC Question

This is a discussion on AC Question within the General Help forums, part of the LSx Technical Help Section category; What happens mechanically speaking when you move your AC selector fron AC to MAX AC. I had my AC worked ...

  1. #1
    Member
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    NBM
    1998Z28

    Question AC Question

    What happens mechanically speaking when you move your AC selector fron AC to MAX AC. I had my AC worked on last week and now the MAX AC isn't working like it use too. I'm thinking a vacumn line is not connected or has a leak or is pinched somewhere?

  2. #2
    Senior Member JonB's Avatar
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    Black
    2005 GTO

    Basically the vent for outside air closes via vacum. If its on a/c or head/feet a/c its taking air from outside. If its on MAX the air from inside the car is recirculated.

  3. #3
    Moderator Cutlass's Avatar
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    Madison, WI
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    1999 Formula WS6 M6-sold
    2001 Silverado Z71

    yeah its basically MAX equals recirc and AC means fresh outside air. The door is vacuum actuated. If the door moves the blower should sound louder or faster in MAX mode

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