AUTOMATIC TRANSMISSION PROBLEMS

Discussion in 'International Forum' started by Rodrigo, Apr 18, 2016.

  1. reynettevos

    reynettevos Bobtail Member

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    Feb 5, 2016
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    So the battery was disconnected for 30 min, and no change. Still gives flashing F and 71.
     
  2. reynettevos

    reynettevos Bobtail Member

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    1
    Feb 5, 2016
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    So disconnected batteries for 30 min and no change. Flashing F and 71 still coming on.
     
  3. Heavyd

    Heavyd Road Train Member

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    I see a tow to the shop in your future.
     
  4. reynettevos

    reynettevos Bobtail Member

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    Feb 5, 2016
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    Yeah, gonna try and limp up to the dealer.
     
  5. HeavyChevy2016

    HeavyChevy2016 Bobtail Member

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    Oct 3, 2020
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    This is heavy Chevy Trucking out of Detroit Michigan I have a 2016 579 Pete transmission starting to slipped luckily it held up and I finished my Amazon load what could be the problem
     
  6. QUALITYTRUCK

    QUALITYTRUCK Road Train Member

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    romulus,mi
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    Bring to my shop on Monday if you like. I won't charge you for taking a look at it. PM me.
     
    Goodysnap and Heavyd Thank this.
  7. wildwestaussie1

    wildwestaussie1 Bobtail Member

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    Nov 15, 2020
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    absolutely horrible gearbox and you will need at least a nexiq2 to dianose it,you may actually have to read idividual CAN BUS messages and decode them for failure mode identifier information (FMI'S).
    OEM wiring and switches/sensors causes most issues and alot of them were'nt right from the factory.
    besides the elec issues air components also cause issues particularly if it's holding in 10th gear.
    if it loses communications over CAN BUS it will log rail shift codes cos it torque locks and it cant shift gears.
     
  8. PTTransporter

    PTTransporter Bobtail Member

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    Sep 24, 2021
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    I have a international prostar 2016 cummins isx 450 and just started a slight vibration and small jump while excelerating in gears 4 and 5
     
  9. A T Trans Inc Texas

    A T Trans Inc Texas Bobtail Member

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    Nov 30, 2021
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    @Heavyd, I read your many replies. You're really good. I have 2015 prostar automatic. It won't go past 5th gear. I'm getting code 71. Any suggestions for me?
     
  10. Heavyd

    Heavyd Road Train Member

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    I replied to your other post.
     
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