Question about 1999 Buick Regal

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Dual climat control, drivers side two vents hot air, passenger side cold air. believe its and actuator thats stuck. not sure were to start

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Start with making sure it is full of freon. Are both lines coming from and to the evaporator cold?

Posted on Aug 07, 2010

  • ditta436 Aug 08, 2010

    I charged the Freon couple weeks ago. it was working fine till my battery died. replaced battery been doing it ever since. Little history, this has happend before, took it to a buick dealership 5 or so years ago and he was able to just stick the dual climate control where it wont move but said it may not hold. "if memory serves" Anyway i would like to fix my self just like to know where to start, can i get to it from under the dash or will i have to tear into it.

    Thanks in advance

  • Clint Smock
    Clint Smock Aug 11, 2010

    You can access the temp door motors under the dash for one and behind the glove box for the other. So are both lines cold to the evaporator? When you unhook the battery the temp controls will do a relearn. Try setting both sides to both cold and unhook the battery again for a couple of minutes.

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