98 pete 3406e engine fan wont turn on for temperature

Discussion in 'Peterbilt Forum' started by Junk Yard Dogg, Jun 21, 2013.

  1. MechaniKing

    MechaniKing Bobtail Member

    6
    0
    Dec 3, 2021
    0
    The truck is a 1997 Peterbilt 377 . Thank you kindly for all of the helpful information. I’m going to dig into some of the wiring and try to figure something out.
     
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  3. Junk Yard Dogg

    Junk Yard Dogg Bobtail Member

    24
    4
    Jun 21, 2013
    winnipeg manitoba canada
    0
    try this
    http://84.204.204.67/Electro/sk25762.pdf
     
  4. Junk Yard Dogg

    Junk Yard Dogg Bobtail Member

    24
    4
    Jun 21, 2013
    winnipeg manitoba canada
    0
    That’s the wrong diagram I think. That’s for a older model, it doesn’t show the ecm to cab harness. I’ll keep looking.
     
  5. MechaniKing

    MechaniKing Bobtail Member

    6
    0
    Dec 3, 2021
    0
    I appreciate that. I’ll keep looking as well.
     
  6. Largecar99

    Largecar99 Bobtail Member

    1
    0
    Apr 30, 2022
    0
    I have a 96 377 with 5ek. I have the same problem. Fan comes on with ac use and when I start truck. Replaced all water sensors. I have power to fan solenoid and Manuel switch works when I flip it on
     
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