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  1. #1
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    May 2011
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    Corvette(s)
    1961,2002

    Default 2002 AC/Heat Problem

    2002 coupe, hvac system is not working as it should, drivers side blows cold air drivers vents and center vent, passenger side vents blow hot air. Any adjustments to the controls in the car are not effecting them. ( has auto adjust temp system )

    Any suggestions on this, I know it will be expensive to fix.


    thank you,

    61fuel

  2. #2
    Moderator Toms01's Avatar
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    2007 Atomic Orange Coupe

    Default

    I'll have to search the old articles, but there is a reset you can do on the "auto" climate control of these cars which, I think can fix the problem you are experiencing. It costs nothing to try and might fix the problem.

    2007 Atomic Orange
    CoupeCashmere/black interior

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  3. #3
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    Default

    any help greatly appreciated.

    rodie

  4. #4
    Moderator Toms01's Avatar
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    Ok, I found the procedure to re-index the control. Give this a try.

    To reindex the actuator, follow the following steps:

    1. Turn OFF the ignition.

    2. Remove the battery positive voltage circuit fuse of the HVAC Control Module (fuse 27). It is located in the passenger's side floor board.

    3. Wait 60 seconds.

    Important
    The module memory will not clear if the battery positive voltage circuit fuse is installed in less than 60 seconds.


    4. Install the fuse.

    Joe, before you can do any work on these cars, you should ALWAYS pull the codes first. Jesse has posted the instructions on how to pull them. The ones that are specific to the problem you are having will be in the HVAC section. Make sure that you write them down ACCURATELY and include the H or C that appears after each code.

    If the R-134a is low, you want to pay to have a evacuation and recovery done so that you know EXACTLY how low the R-134a is. Don't just add some to the system because too much can create its own set of issues. You also need to have some dye inserted into the system so that the leak can be located.







    2007 Atomic Orange
    CoupeCashmere/black interior

    2005 CruiseFest Attendee (Bowling Green, KY)
    2007 CruiseFest Attendee (Colorado Springs, CO)
    2008 CruiseFest Attendee (Cleveland, OH)

    2010 Cruisefest Attendee(Effingham, IL)
    2011 CruiseFest Attendee(Effingham, IL)

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  5. #5
    Moderator Toms01's Avatar
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    Check in here to check your codes

    Pulling Codes on a C5

    2007 Atomic Orange
    CoupeCashmere/black interior

    2005 CruiseFest Attendee (Bowling Green, KY)
    2007 CruiseFest Attendee (Colorado Springs, CO)
    2008 CruiseFest Attendee (Cleveland, OH)

    2010 Cruisefest Attendee(Effingham, IL)
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