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Ac help

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by jpgale22, Jul 17, 2019.

  1. Jul 17, 2019 #1
    jpgale22

    jpgale22 Light Load Member

    149
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    Apr 12, 2016
    0
    my ac is blowing hot air. I just replace the ac condenser and the ac evaporator because they where damage and had a hole through both parts I replace both parts and did a ac recharge and it’s still blowing hot air and also my check ac light is on . The mechanic said it could be a sensor or a bad wire. I have a 2007 international ihc with a Cummins ism engine need help thanks
     
    jpgale22, Jul 17, 2019
    jpgale22, Jul 17, 2019
    #1
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  3. Jul 17, 2019 #2
    Muddydog79

    Muddydog79 Heavy Load Member

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    Apr 14, 2016
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    Dumb question but have you checked the fuses? Is the clutch kicking in?
     
    Muddydog79, Jul 17, 2019
    Muddydog79, Jul 17, 2019
    #2
  4. Jul 17, 2019 #3
    Mr Bob

    Mr Bob Light Load Member

    233
    74
    Mar 17, 2015
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    Did you replace the filter? Did you vacuum it down and leak test?
     
    Mr Bob, Jul 17, 2019
    Mr Bob, Jul 17, 2019
    #3
    Intothesunset Thanks this.
  5. Jul 17, 2019 #4
    Deere hunter

    Deere hunter Road Train Member

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    Shallowater Texas
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    Also expansion valve could be stuck !
     
    Deere hunter, Jul 17, 2019
    Deere hunter, Jul 17, 2019
    #4
  7. Jul 17, 2019 #5
    Intothesunset

    Intothesunset Road Train Member

    2,290
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    Apr 15, 2019
    truck
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    If you do not have this equipment don't bother doing work yourself.
     
    Intothesunset, Jul 17, 2019
    Intothesunset, Jul 17, 2019
    #5
    truckdriver31 Thanks this.
  8. Jul 17, 2019 #6
    wtokhi

    wtokhi Light Load Member

    247
    114
    Nov 3, 2017
    0
    If it’s an international always check your thermisters, they’re the little sensors on your ac lines with white caps , if those fail then the system won’t work
     
    wtokhi, Jul 17, 2019
    wtokhi, Jul 17, 2019
    #6
    Intothesunset Thanks this.
  9. Jul 17, 2019 #7
    truckdriver31

    truckdriver31 Road Train Member

    6,988
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    Sep 18, 2013
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    hey i have a leak. let me put a 5 cent o ring in it and just empty 15 cans of freon in it. turn it on and it blows hot air. do it right from the start and you will have ice cold ac
     
    truckdriver31, Jul 17, 2019
    truckdriver31, Jul 17, 2019
    #7
  10. Jul 17, 2019 #8
    truckdriver31

    truckdriver31 Road Train Member

    6,988
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    Sep 18, 2013
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    yea that humidity done broke that bag in the dryer. bead charged threw system into expansion valve
     
    truckdriver31, Jul 17, 2019
    truckdriver31, Jul 17, 2019
    #8
    Deere hunter Thanks this.
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