Freightliner Classic Ac issues

Discussion in 'Trucks [ Eighteen Wheelers ]' started by united972, Jun 29, 2020.

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  1. Jun 29, 2020 #1
    united972

    united972 Light Load Member

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    So I have a 2005 Freightliner Classic the Bunk AC Blows Ice cold but the front is warm I cannot get it to blow cold air.

    I have changed the following

    1. Ac Dryer
    2. Expansion Valve
    3. Compressor


    It blows warm air no matter what but the bunk ac is ice cold.


    Any suggestions on what I should do?
     
    united972, Jun 29, 2020
    united972, Jun 29, 2020
    #1
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  3. Jun 29, 2020 #2
    buddyd157

    buddyd157 Road Train Member

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    have you checked the blend doors?

    maybe one is stuck?
     
    buddyd157, Jun 29, 2020
    buddyd157, Jun 29, 2020
    #2
  4. Jun 29, 2020 #3
    united972

    united972 Light Load Member

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    No I have not how would i go about checking those?
     
    united972, Jun 29, 2020
    united972, Jun 29, 2020
    #3
  5. Jun 29, 2020 #4
    buddyd157

    buddyd157 Road Train Member

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    Last edited: Jun 29, 2020
    buddyd157, Jun 29, 2020
    buddyd157, Jun 29, 2020
    #4
    united972 Thanks this.
  7. Jun 29, 2020 #5
    buddyd157

    buddyd157 Road Train Member

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    Last edited: Jun 29, 2020
    buddyd157, Jun 29, 2020
    buddyd157, Jun 29, 2020
    #5
    united972 Thanks this.
  8. Jun 29, 2020 #6
    buddyd157

    buddyd157 Road Train Member

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    Last edited: Jun 29, 2020
    buddyd157, Jun 29, 2020
    buddyd157, Jun 29, 2020
    #6
  9. Jun 29, 2020 #7
    terryt

    terryt Heavy Load Member

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    2005 have a water shut off valve that control heater temperatures that is probably leaking turn the coolant off going to heater core. Second thing cleaning the evaporator coil they get real plugged up with age cause of no air filter. There is no blend door for temperature. The controls are for airflow are power by air pressure not vacuum. That vacuum stuff is for cars and pickups
     
    terryt, Jun 29, 2020
    terryt, Jun 29, 2020
    #7
    spsauerland and Rideandrepair Thank this.
  10. Jun 29, 2020 #8
    Rideandrepair

    Rideandrepair Road Train Member

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    I agree, probably a bad water valve in the cab.
     
    Rideandrepair, Jun 29, 2020
    Rideandrepair, Jun 29, 2020
    #8
  11. Jun 29, 2020 #9
    united972

    united972 Light Load Member

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    do you know where exactly it would be located?
     
    united972, Jun 29, 2020
    united972, Jun 29, 2020
    #9
  12. Jun 29, 2020 #10
    terryt

    terryt Heavy Load Member

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    it should be next to right hand corner once you pull the fuse panel / doghouse panel off
     
    terryt, Jun 29, 2020
    terryt, Jun 29, 2020
    #10
    Rideandrepair Thanks this.
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