Heavy Duty

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  • Matt
    Senior Member
    • Dec 2008
    • 328

    Heavy Duty

    I realize this is not a forum intended for heavy duty trucks but I'm down to my last straw on this one. I am attempting to fix the A/C in a local farmers 1988 Kenworth T800. The wiring schematic is conveniently located behind the glove box. Unfortunately, after lots of wear and tear, the portion I need to reference has rubbed off. I contacted ProDemand and they were very helpful but their archives only go back to 1990. And yes they are different than the 1988. I have been all over google and the regular service info providers and can't locate the image I need. If somebody out there could point me in the right direction I would be very grateful.

    P.S. Local dealer no help at all.
  • Joe Rappa
    Snap-on DSD
    • Aug 2007
    • 2050

    #2
    I hope someone chimes in here to help you, but don't hold your breath. I think you're going to have to find a printed manual for it somewhere.
    Joe
    "You don't build a reputation on what you're going to do"
    Henry Ford

    Comment

    • Matt
      Senior Member
      • Dec 2008
      • 328

      #3
      Originally posted by Joe Rappa
      I hope someone chimes in here to help you, but don't hold your breath. I think you're going to have to find a printed manual for it somewhere.
      Joe
      I was afraid of that.

      Comment

      • GSN34
        Junior Member
        • Sep 2018
        • 9

        #4
        Matt, I feel your pain. Need engine model or vin on this.

        Comment

        • DtechJon
          Junior Member
          • Apr 2015
          • 8

          #5
          Have you tried IATN?

          Comment

          • Matt
            Senior Member
            • Dec 2008
            • 328

            #6
            Originally posted by gsn34
            matt, i feel your pain. Need engine model or vin on this.
            vin# 1xkdd29x9js504008

            Comment

            • Matt
              Senior Member
              • Dec 2008
              • 328

              #7
              Originally posted by DtechJon
              Have you tried IATN?
              I have not. Do I need a membership?

              Comment

              • DtechJon
                Junior Member
                • Apr 2015
                • 8

                #8
                Originally posted by Matt
                I have not. Do I need a membership?
                yes. its 20 bucks a month but imo well worth it. There are techs and Forman's from all over the country on it...maybe all over the world. its not guaranteed but I have had good luck with it.

                Comment

                • Matt
                  Senior Member
                  • Dec 2008
                  • 328

                  #9
                  Originally posted by DtechJon
                  yes. its 20 bucks a month but imo well worth it. There are techs and Forman's from all over the country on it...maybe all over the world. its not guaranteed but I have had good luck with it.
                  Good to know. Thanks DtechJon.

                  Comment

                  • David Green
                    Senior Member
                    • Oct 2009
                    • 382

                    #10
                    There is a manual but I'd not like to pay $354 for it on a probably one off job!

                    Comment

                    • Matt
                      Senior Member
                      • Dec 2008
                      • 328

                      #11
                      Originally posted by David Green
                      There is a manual but I'd not like to pay $354 for it on a probably one off job!

                      https://www.ebay.com/itm/1987-1988-K...-/372659212437
                      Thank you. I am going to let the customer know if I don't have a good schematic I could get several hours of labor just chasing down wire colors. This has truck has seen a heavy wiring hack job. It may be cheaper for me to buy the manual even if this is a one time job .

                      Comment

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