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Thread: Passenger side hot air only

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  1. #1

    Passenger side hot air only

    In my 98 Regal I have only hot air coming from the vents. I have followed the tech service manual and it leads me to replace the HVAC control head unit. I have the dual zone digital control system, I am not looking forward to replacing the expensive unit and all the labor to do it. I am looking for a way to tell the electric controler to go to full cold. Would the signal be full voltage or low voltage?
    98 Buick GS Supercharged
    86 Buick GN Turbocharged
    85 Buick Regal Limited getting a BBB 455 soon
    06 Chevy Duramax Turbocharged
    11 Chevy Duramax Turbocharged

    I love boost.

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