2007 Volvo Cummins ISX fan turns on with no reason. Can help anyone please.

Discussion in 'Volvo Forum' started by PITBULL777, Feb 28, 2013.

  1. PITBULL777

    PITBULL777 Bobtail Member

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    Feb 28, 2013
    Schaumburg, ILLINOIS
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    I just changed the temperature senson. No results :(
     
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  3. chopov78

    chopov78 Light Load Member

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    Feb 27, 2010
    illinois
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    I'm sorry to hear that,I hope you find the f...n problem soon.Good luck
     
  4. PITBULL777

    PITBULL777 Bobtail Member

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    Feb 28, 2013
    Schaumburg, ILLINOIS
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    Thanks anyway. I have no clue whats wrong. Im going to dealer :/
     
  5. bossboy2

    bossboy2 Light Load Member

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    Aug 20, 2011
    Houston, TX
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    Any results yet?
     
  6. PITBULL777

    PITBULL777 Bobtail Member

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    Feb 28, 2013
    Schaumburg, ILLINOIS
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    Unfortunately not :( Yesterday i was at the Volvo dealer in Virginia. 5 hours of labor $660 and no results. Thats crazy.
     
  7. nasriza

    nasriza Road Train Member

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    Feb 1, 2013
    Chicago, IL
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    Look at the harness that runs on the driver side of the engine it goes on top of the fuel pump and it should come right to the solenoid u have some short on that harnes or maybe a half broken wire that's making all the issues also it might be an ECM issue as well I've had that happen numerous time before I've spent hours and hours tracing wiring and the ECM had an internal problem check to see what kind of power you're getting at the solenoid u should begetti g over 12 v for the an to stop running u have a wiring issue or ECM for sure from the codes it's not a sensor turning it o.
     
  8. PITBULL777

    PITBULL777 Bobtail Member

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    Feb 28, 2013
    Schaumburg, ILLINOIS
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    Technician at the dealer checked all of it. I was standing next to him, i saw all of it what he was doing. There is no broken wire, all responsible for the fan is the correct voltage. Thanks for help. I had broken wire before but the fan went on and worked all the time till i fixed. Now i have those simptoms only in warm weather and only when i press the throttle pedal. Throttle pedal released, fan turns off
     
  9. PITBULL777

    PITBULL777 Bobtail Member

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    Feb 28, 2013
    Schaumburg, ILLINOIS
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    Finally problem solved :biggrin_255: Updated ECM calibration to latest calibration (AB10351.23)
     
  10. Srdjan Todorovic

    Srdjan Todorovic Bobtail Member

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    Jul 9, 2014
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    Hey,Buddy
    I've got 400 hp cummins with same problem!
    just wandering,have you been able to fix it,and what was the problem?

    thanx
     
  11. mp4694330

    mp4694330 Road Train Member

    1,526
    1,453
    Aug 30, 2010
    Chicagoland
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    Look up at post #28.
     
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