AC problem

Discussion in 'Trucks [ Eighteen Wheelers ]' started by skman, Aug 7, 2025 at 10:00 PM.

  1. skman

    skman Medium Load Member

    308
    127
    Aug 26, 2013
    Saskatchewan
    0
    I've got a 2005 International with an ISX 2250 (swapped in) that had a hole rubbed in the AC condenser.
    Took a couple weeks but we got the new condenser and swapped it out as well as the dryer/accumulator.
    We pulled a vacuum and started filling it up and the AC compressor started running and the clutch never disengages.
    We had it filled at 3.5 pounds but was only coming out the vent at 60F (ambient shop air wa about 76F) and compressor still was constantly engaged.
    Fan is coming on and going off as required to pull down the pressure.
    Not sure where to look next. It was working/cooling good before the condenser went out.
     
    singlescrewshaker Thanks this.
  2. Truckers Report Jobs

    Trucking Jobs in 30 seconds

    Every month 400 people find a job with the help of TruckersReport.

  3. Big Road Skateboard

    Big Road Skateboard Road Train Member

    6,203
    34,064
    May 2, 2021
    0
    What are the gauges showing with the fan on? A pic would help
     
  4. skman

    skman Medium Load Member

    308
    127
    Aug 26, 2013
    Saskatchewan
    0
    The low side will go up at the same rate as the high side. When they both hit about 250... the fan kicks in and they both drop to about 100
     
  5. Big Road Skateboard

    Big Road Skateboard Road Train Member

    6,203
    34,064
    May 2, 2021
    0
    You have something mixed up here. Can you get a pic of the gauges with A/C on, fan on?
     
  6. skman

    skman Medium Load Member

    308
    127
    Aug 26, 2013
    Saskatchewan
    0
    I'm gone from the shop right now but I'll try get some pics tomorrow. Thanks
     
  7. singlescrewshaker

    singlescrewshaker Road Train Member

    4,830
    42,154
    Dec 31, 2017
    Little Havana, FL
    0
    20250806_152654.jpg


    Clutch wouldn't disengage yesterday
    Sure felt nice in the cab till I realized there was a problem.. lol
     
    skman and Big Road Skateboard Thank this.
  • Truckers Report Jobs

    Trucking Jobs in 30 seconds

    Every month 400 people find a job with the help of TruckersReport.