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Truck shuts off...or does it?

Discussion in 'Peterbilt Forum' started by Rudy5, Sep 26, 2013.

  1. Sep 26, 2013 #1
    Rudy5

    Rudy5 Light Load Member

    54
    2
    Mar 17, 2013
    0
    My 97 Pete w/DD 12.7 pre egr suddenly shuts off when driving on the hey. Lights come on in the dash as if I had just turned the key to the on position. Wired thing is, it cuts right back on pretty darn quickly And then the lights go off like nothing happened. When this occurs I do feel the accelerator go dead for a split second.anyone have any ideas what this might be?
     
    Rudy5, Sep 26, 2013
    Rudy5, Sep 26, 2013
    #1
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  3. Sep 26, 2013 #2
    QUALITYTRUCK

    QUALITYTRUCK Road Train Member

    1,810
    1,773
    Jun 14, 2009
    romulus,mi
    0
    e.c.m. wiring problem.in battery box look for small,fused wires.check for corrosion/loose connections.if not there,you will have to follow those wires all the way to the ecm.good luck.
     
    QUALITYTRUCK, Sep 26, 2013
    QUALITYTRUCK, Sep 26, 2013
    #2
    Rudy5 Thanks this.
  4. Sep 26, 2013 #3
    Reycer

    Reycer Medium Load Member

    551
    209
    Feb 15, 2013
    Ohio
    0
    ...........
     
    Last edited: Sep 26, 2013
    Reycer, Sep 26, 2013
    Reycer, Sep 26, 2013
    #3
  5. Sep 26, 2013 #4
    heavyhaulerss

    heavyhaulerss Road Train Member

    3,723
    2,040
    Dec 23, 2009
    AL/TN BORDER
    0
    the ground wire from batt to e.c.m. or to sensors
     
    heavyhaulerss, Sep 26, 2013
    heavyhaulerss, Sep 26, 2013
    #4
  7. Sep 27, 2013 #5
    bubbanbrenda

    bubbanbrenda Road Train Member

    1,388
    650
    Feb 27, 2011
    Middletown,Oh.
    0
    power or ground wire to ECM 90% of the time it's power wire inside the battery box.( I assume you are talking about a 378/379 model)
     
    bubbanbrenda, Sep 27, 2013
    bubbanbrenda, Sep 27, 2013
    #5
  8. Sep 27, 2013 #6
    RJC

    RJC Bobtail Member

    23
    13
    Jul 26, 2011
    Dothan,Alabama
    0
    I had this same problem on a 96 Pete 379. The problem ended up being a bad wire connection on the back of the fuse box. I do not remember which wire it was ,I am thinking it was the ignition wire. The mechanic found it by moving the wires one at a time until it lost connection. If I remember right it was the wire end that connected to the fuse panel.Hope this helps.
     
    RJC, Sep 27, 2013
    RJC, Sep 27, 2013
    #6
  9. Sep 28, 2013 #7
    Rudy5

    Rudy5 Light Load Member

    54
    2
    Mar 17, 2013
    0
    Sorry I took do long to reply but I had trouble logging in for some reason. You were absolutely right. It seems that when I took a look at the battery box there were 2 extremely loose cables, including one that had the wire with a small fuse on it that goes to ecm. I tightened everything up and it alleviated the problem. I haven't had any problems since. Thank you everyone for your input, and time. Saved some money on this one. Lol. Yeah
     
    Rudy5, Sep 28, 2013
    Rudy5, Sep 28, 2013
    #7
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