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2009 Prostar Need urgent help.

Discussion in 'International Forum' started by Gb2020, Oct 25, 2020.

  1. Oct 25, 2020 #1
    Gb2020

    Gb2020 Bobtail Member

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    Oct 25, 2020
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    We have been to several mechanics and haven’t found the problem. I have an international pro star 2009 Cummins engine that is giving me lots of trouble. It begins to “jerk” and turns off. I have a code for low engine pressure. Not sure that is the true problem since the engine control module has been giving codes for parts that didn’t need repair. Could it be something electrical?? The engine control module was recently reprogrammed because it wouldn’t accelerate.
     
    Gb2020, Oct 25, 2020
    Gb2020, Oct 25, 2020
    #1
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  3. Oct 25, 2020 #2
    AModelCat

    AModelCat Road Train Member

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    Low engine pressure? Can you be more specific? There's at least half a dozen different pressures being monitored by the ECM.
     
    AModelCat, Oct 25, 2020
    AModelCat, Oct 25, 2020
    #2
    Chinatown Thanks this.
  4. Oct 26, 2020 #3
    '88K100

    '88K100 Road Train Member

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    I was driving similar Prostar and it didn’t jerk but engine would shut off, sort of grabbed your attention on steep grades. Never learned what issue was
     
    '88K100, Oct 26, 2020
    '88K100, Oct 26, 2020
    #3
  5. Oct 26, 2020 #4
    Gb2020

    Gb2020 Bobtail Member

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    Oct 25, 2020
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    Sorry I meant low fuel pressure not engine.
     
    Gb2020, Oct 26, 2020
    Gb2020, Oct 26, 2020
    #4
  7. Oct 29, 2020 #5
    Heavyd

    Heavyd Road Train Member

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    The ECM might be losing power due to a bad connection or wire. Run the engine and gently wiggle the wiring harness from the ECM to the firewall. Pay attention to the square main power connector at the ECM and the mega fuses at the firewall. I believe there is a 5 or 10amp ignition fuse tucked in behind the mega fuses that might have corrosion in it. So check that too.
     
    Heavyd, Oct 29, 2020
    Heavyd, Oct 29, 2020
    #5
    650cat425 Thanks this.
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