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Location of low side ac port on a 074200 international

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by Nick209, May 21, 2023.

  1. May 21, 2023 #1
    Nick209

    Nick209 Bobtail Member

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    Nov 4, 2022
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    AC is coolish, but not good enough to drive with windows up. That’s the point im trying to get to.

    Won’t let me edit title it is for a 2007 4200 international
     
    Nick209, May 21, 2023
    Nick209, May 21, 2023
    #1
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  3. May 21, 2023 #2
    MRMTRANS

    MRMTRANS Medium Load Member

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    Apr 28, 2015
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    There's a fat line that goes to the air conditioning compressor From the evaporator in the dash. That's the low pressure line. There's A-line from the condenser by the radiator that goes to the evaporator. That's the high pressure line.
     
    MRMTRANS, May 21, 2023
    MRMTRANS, May 21, 2023
    #2
    AModelCat Thanks this.
  4. May 21, 2023 #3
    AModelCat

    AModelCat Road Train Member

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    I usually just follow the two lines off the compressor and eventually you'll find the ports. The smaller of the 2 should be the low side.
     
    AModelCat, May 21, 2023
    AModelCat, May 21, 2023
    #3
  5. May 22, 2023 #4
    Heavyd

    Heavyd Road Train Member

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    Near the firewall, near the accumulator if you have the orifice tube type.
     
    Heavyd, May 22, 2023
    Heavyd, May 22, 2023
    #4
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