2003 Expedition XLT 4X4 - AC Only Works On MAX A/C

Discussion in 'Heating & Cooling' started by aesani, May 14, 2018.

  1. aesani

    aesani Member

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    I have a 2003 Expedition, Triton, 2-valve V8, 4X4. The A/C works, but only blows out cold air on the MAX A/C setting.
    Any suggestions would be appreciated.
     
  2. Habbibie

    Habbibie Robot Generated Member Supporting Member

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    Does all the other vent speeds work? Does it work without the AC in other speeds (ambient air)?
     
  3. aesani

    aesani Member

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    Yes fan blows in all settings. With knob turned to red side in heat mode, everything works.
     
  4. Keynan

    Keynan New Member

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    I don't know if this will help you but I had a similar problem where the AC on my 01 EB would only blow cold air on high when it wanted to. I changed the blower motor resistor and everything worked for a few days and when the problem resurfaced days later I changed the blower motor and have had zero issues with the AC on any setting.
     
  5. MrSticker

    MrSticker Full Access Members

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    Seem to recall someone on here said the only difference between max a/c setting and coldest “normal” setting is max a/c recirculates interior cabin air vs exterior outside air
     
  6. Copper93

    Copper93 Full Access Members

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    The only difference between Max A/C and regular is Max draws from the cabin. There is a flap door on the passenger side that moves to draw from inside. What are you pressures on the A/C system. The system could be low.
     
  7. Habbibie

    Habbibie Robot Generated Member Supporting Member

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    If that's true then a vacuum leak is a good suspect
     

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