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Freightliner Cascadia 2012 DD15 DEF loses power

Discussion in 'Freightliner Forum' started by birsadorin24, Jun 27, 2017.

  1. Jun 27, 2017 #1
    birsadorin24

    birsadorin24 Bobtail Member

    2
    0
    Jun 27, 2017
    0
    My truck is loosing power in seconds , after 3-4 seconds the power is returning. That happens as many times as it wants, anytime, anywhere. When is loosing the power the check engine is not on. A second after loosing the power the radiator fan starts for 10-15 seconds. Sometimes the check engine is on and it shows SPN 108 BAROMETRIC PRESSURE 13 . I did 2 diagnoses at Freightliner dealership and is not showing any active faults and the mechanics don't know where from to start the repairs. Thanks and hopefully someone will help me. The truck is Freightliner Cascadia 2012 DD15 DEF
     
    Last edited: Jun 27, 2017
    birsadorin24, Jun 27, 2017
    birsadorin24, Jun 27, 2017
    #1
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  3. Jun 27, 2017 #2
    QUALITYTRUCK

    QUALITYTRUCK Road Train Member

    1,780
    1,726
    Jun 14, 2009
    romulus,mi
    0
    I just won a fight with this same problem after 3 day battle at my shop. Save yourself a headache and replace the engine harness. $350 harness. 5-6 hours labor. Trust me on this one.
     
    QUALITYTRUCK, Jun 27, 2017
    QUALITYTRUCK, Jun 27, 2017
    #2
    brysol01, simo omnis and birsadorin24 Thank this.
  4. Jun 27, 2017 #3
    xsetra

    xsetra Road Train Member

    4,927
    6,587
    Aug 21, 2011
    0
    Sounds like a loose contact or a short somewhere in your harness.
    Good luck. Electric gremlins are hard to find sometimes
     
    xsetra, Jun 27, 2017
    xsetra, Jun 27, 2017
    #3
    birsadorin24 Thanks this.
  5. Apr 10, 2018 #4
    Rmanuel77

    Rmanuel77 Bobtail Member

    1
    0
    Apr 10, 2018
    0
    I am having the same exact problem! Did you ever figure out what it was?
     
    Rmanuel77, Apr 10, 2018
    Rmanuel77, Apr 10, 2018
    #4
  7. Apr 10, 2018 #5
    me myself and I

    me myself and I Heavy Load Member

    716
    308
    Oct 5, 2009
    vernon hills,Il
    0
    Power kill switch?
     
    me myself and I, Apr 10, 2018
    me myself and I, Apr 10, 2018
    #5
  8. May 10, 2018 #6
    mhyn

    mhyn Road Train Member

    4,255
    4,502
    Dec 29, 2008
    Northridge, CA
    0
    the mcm has baro sensor mounted on back side. Some times pressure washing kills it.
     
    mhyn, May 10, 2018
    mhyn, May 10, 2018
    #6
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