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379 with a cat wont start

Discussion in 'Peterbilt Forum' started by dgc, Dec 15, 2013.

Page 2 of 2
  1. Dec 16, 2013 #11
    SHO-TYME

    SHO-TYME Road Train Member

    3,425
    3,177
    Apr 20, 2011
    Dahlonega, GA
    0
    Check the two wires from the ECM to the battery.
     
    SHO-TYME, Dec 16, 2013
    SHO-TYME, Dec 16, 2013
    #11
    dgc Thanks this.
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  3. Dec 17, 2013 #12
    dgc

    dgc Light Load Member

    92
    46
    Dec 2, 2012
    miami, fl
    0
    Checked all the basics... Yes it turned over and even tried some starting fluid and it would not start.. called a buddy of mine at the Cat Dealer and he had me check the number 70 pin on ECM. sure enough it wasn't getting power to the ecm to turn on , so i spliced it and ran a wire to the battery and it started right up.. so i ran the wire to the fuse box to get some juice and once i get back home i'll try and see exactly where the problem is.. Thank you all
     
    dgc, Dec 17, 2013
    dgc, Dec 17, 2013
    #12
  4. Dec 17, 2013 #13
    SHO-TYME

    SHO-TYME Road Train Member

    3,425
    3,177
    Apr 20, 2011
    Dahlonega, GA
    0
    Glad you got it going, mine started acting up one day, took it to Pete and they found the ECM connection at the battery bad. I try to make sure I keep it cleaned and tight.
     
    SHO-TYME, Dec 17, 2013
    SHO-TYME, Dec 17, 2013
    #13
  5. Dec 18, 2013 #14
    bstromback2002

    bstromback2002 Light Load Member

    133
    23
    May 12, 2012
    wi
    0
    Did you have power to the rest of the stuff on your dash such as heater control, radio and anything else that is powered up when you turn the key on?? If not definantly try the main power relay in fuse box that kwcam suggested. The turn signal problem sounds more like the flasher is on its last leg.
     
    bstromback2002, Dec 18, 2013
    bstromback2002, Dec 18, 2013
    #14
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