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Thread: a/c problems on a Kenworth

  1. #1
    logical is offline Rookie
    Join Date
    May 2008

    Default a/c problems on a Kenworth

    our Kenworth a/c simply will not work with out the main fan on, just blow hot air or mildly cool. any suggestions

  3. #2
    TK THE TRUCKER's Avatar
    TK THE TRUCKER is offline Senior Board Member
    Join Date
    Jul 2004
    Macedon Center,NY


    What kind of condition is the condenser in ? Is it clean ? or is it full of corrosion, dirt and bugs ? 8) 8)

  4. #3
    GMAN's Avatar
    GMAN is offline Administrator Board Icon
    Join Date
    Feb 2005


    You may need to have it charged. It could be low on refrigerant. Being low on antifreeze can also make your a/c blow warmer.

  5. #4
    Orangetxguy's Avatar
    Orangetxguy is offline Senior Board Member
    Join Date
    Jan 2007


    All of what TK & G-da-Man said! Plus...are the heater line valves closed? Makes a difference over 90 degrees.

    Big thing is the condition of the condenser and radiator. If they are plugged with dirt, leaves and bugs..then you won't get proper air flow throw them and no A/C, with out the truck moving and the fan engaged...been there...paid for that!! The condensor needs to be pulled off the front, washed and blowen out from the cannot wash or blow the dirt through towards the radiator !! Also..kinked hoses from the condenser to the drier....dirty cab filters..or a bad cab "coil" or bad compressor.

    Lot's of things to go wrong with A/C.
    Space...............Is disease and danger, wrapped in darkness and silence! :thumbsup: Star Trek2009


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