Truckers Report Jobs

Find Trucking Jobs

Company Driver Company Driver Dry Van Dry Van Flatbed Flatbed Refrigerated Refrigerated Specialized Specialized Owner Operator Owner Operator
More Trucking Job Searches ⌄ Fewer Trucking Job Searches
⌃

W900 Shuts down, changed oil pressure sensor, low voltage to ecm

Discussion in 'Ask An Owner Operator' started by JonasTtrucker, Sep 27, 2018.

  1. Sep 27, 2018 #1
    JonasTtrucker

    JonasTtrucker Light Load Member

    53
    1
    Apr 26, 2018
    St. Louis, MO
    0
    About a month ago my W900 starting to go to slow idle and when pulled over the engine shutoff. Thought it was a sensor or a bad computer, but in the Morning the truck started right up and ran for a month no issues until yesterday.... yesterday the truck did the same thing accept this time haven't been able to drive it. Got an error code saying oil pressure sensor and low voltage to the computer and replaced the oil pressure sensor and tried another computer with the same issue. After starting the engine sometimes a few minutes sometimes 10 minutes the engine will shutoff... any ideas?
     
    JonasTtrucker, Sep 27, 2018
    JonasTtrucker, Sep 27, 2018
    #1
  2. Truckers Report Jobs

    Trucking Jobs in 30 seconds

    Every month 400 people find a job with the help of TruckersReport.

  3. Sep 27, 2018 #2
    Cattleman84

    Cattleman84 Road Train Member

    9,602
    67,008
    Nov 1, 2017
    The Sticks, Idaho
    0
    Bad connection or wire going to computer??? Just spit balling, I'm no mechanic.
     
    Cattleman84, Sep 27, 2018
    Cattleman84, Sep 27, 2018
    #2
  4. Sep 27, 2018 #3
    fortycalglock

    fortycalglock Road Train Member

    6,120
    6,513
    Jun 25, 2011
    Tourist Town, FL
    0
    Bad power or ground to the ECM.
     
    fortycalglock, Sep 27, 2018
    fortycalglock, Sep 27, 2018
    #3
    boneebone and AModelCat Thank this.
  5. Sep 27, 2018 #4
    AModelCat

    AModelCat Road Train Member

    27,708
    145,156
    Jul 7, 2015
    Canuckistan
    0
    Diagnose it, don't start throwing parts at it. 99% of the time its wiring, not sensors or computers.
     
    AModelCat, Sep 27, 2018
    AModelCat, Sep 27, 2018
    #4
    peterbilt_2005 Thanks this.
  7. Sep 27, 2018 #5
    boneebone

    boneebone Road Train Member

    2,232
    2,266
    Mar 13, 2009
    0
    Also check chafed or loose wires around the starter, battery and ECM.
     
    boneebone, Sep 27, 2018
    boneebone, Sep 27, 2018
    #5
  8. Sep 28, 2018 #6
    MysticHZ

    MysticHZ Road Train Member

    5,817
    5,560
    May 28, 2010
    0
    Or sometimes it's what the sensor is monitoring is actually bad. My last truck had similar symptoms ... The oil pump was going.
     
    MysticHZ, Sep 28, 2018
    MysticHZ, Sep 28, 2018
    #6
  • Truckers Report Jobs

    Trucking Jobs in 30 seconds

    Every month 400 people find a job with the help of TruckersReport.