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2012 Durastar no high idle

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by dhoffman22, Apr 17, 2025.

  1. Apr 17, 2025 #1
    dhoffman22

    dhoffman22 Bobtail Member

    1
    0
    Nov 20, 2019
    0
    2012 Durastar 7400 with garbage packer. I have lost high idle and throttle advance on packer. RPM module is getting throttle advance signal. Truck sees all the cruise switches, service brake, parking brake switch. Cruise control works. Unpluged the rpm module no change for truck high idle. PTO works, that is the only thing that needs to be on for the throttle advance to be working according to advance logic Any ideas would be helpful at a dead end.
     
    dhoffman22, Apr 17, 2025
    dhoffman22, Apr 17, 2025
    #1
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  3. Apr 18, 2025 #2
    Inderjit

    Inderjit Heavy Load Member

    717
    706
    Sep 17, 2017
    0
    If everything checks out good. I would get the software in the body control module reflashed.
    I have seen on several occasions odd electronic problems fixed with a reflash.
     
    Inderjit, Apr 18, 2025
    Inderjit, Apr 18, 2025
    #2
    dhoffman22 Thanks this.
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