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Oil Pressure Gauge Problems

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by Jinxmiceter, Feb 16, 2019.

  1. Feb 16, 2019 #1
    Jinxmiceter

    Jinxmiceter Bobtail Member

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    I have a 2011 International prostar with the ISX15 liter Cummins, My oil pressure gauge maxed out, then dropped down to 5 pounds of pressure, then goes into shut down mode. Everything I have read states to change the oil pressure sending unit. I did so, after doing so the gauge seemed to have worked properly for approximately 10 minutes then it maxed out and once again dropped back down to 5 pounds of pressure, when I accelerate the engine the gauge does not move. The motor is not making any noises, and Is full of oil.
    Has anyone ever encountered this problem on their truck can you give me any ideas of what to look for.
     
    Last edited: Feb 16, 2019
    Jinxmiceter, Feb 16, 2019
    Jinxmiceter, Feb 16, 2019
    #1
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  3. Feb 16, 2019 #2
    Bakerman

    Bakerman Road Train Member

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    I had a similar problem years ago in my '01 Volvo. Problem ended up being a loose wire on the circuit board in the dash cluster.
     
    Bakerman, Feb 16, 2019
    Bakerman, Feb 16, 2019
    #2
    Jinxmiceter Thanks this.
  4. Feb 16, 2019 #3
    olddog_newtricks

    olddog_newtricks Medium Load Member

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    If the sending unit didn't fix it I would try changing the oil pressure gauge.
     
    olddog_newtricks, Feb 16, 2019
    olddog_newtricks, Feb 16, 2019
    #3
    Jinxmiceter Thanks this.
  5. Feb 16, 2019 #4
    IH Truck Guy

    IH Truck Guy Road Train Member

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    Plumb in a mechanical gauge and see what that reads.
     
    IH Truck Guy, Feb 16, 2019
    IH Truck Guy, Feb 16, 2019
    #4
    BoxCarKidd, A5¢ and Jinxmiceter Thank this.
  7. Feb 16, 2019 #5
    Jinxmiceter

    Jinxmiceter Bobtail Member

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    That's my next move. But how do i keep engine from shutting down?
     
    Jinxmiceter, Feb 16, 2019
    Jinxmiceter, Feb 16, 2019
    #5
  8. Feb 16, 2019 #6
    IH Truck Guy

    IH Truck Guy Road Train Member

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    Ok you didn't say it was shutting down .
    So it drops to 5psi,warning lites come on and it shuts down?
     
    IH Truck Guy, Feb 16, 2019
    IH Truck Guy, Feb 16, 2019
    #6
  9. Feb 16, 2019 #8
    Jinxmiceter

    Jinxmiceter Bobtail Member

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    Exactly
     
    Jinxmiceter, Feb 16, 2019
    Jinxmiceter, Feb 16, 2019
    #8
  10. Feb 16, 2019 #8
    Working2party

    Working2party Medium Load Member

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    I would go ahead and instal the manual gauge. I’m not sure on Cummins, but sometimes you can fool the computer by unplugging the sensor.

    If it’s not an electrical issue, more than likely you have a sticking oil pressure relegated valve.

    If you start it and max out the manual gauge start looking for threads involving an ISX and oil pressure relief, you should find somebody more familiar your engine.
     
    Working2party, Feb 16, 2019
    Working2party, Feb 16, 2019
    #8
    Jinxmiceter Thanks this.
  11. Feb 18, 2019 #9
    Jinxmiceter

    Jinxmiceter Bobtail Member

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    Replaced oil pressure switch.. and plug, took care of problem. Thank you for everyone's suggestions.
     
    Jinxmiceter, Feb 18, 2019
    Jinxmiceter, Feb 18, 2019
    #9
    Working2party and IH Truck Guy Thank this.
  12. Apr 20, 2019 #10
    Dmaksymchuk

    Dmaksymchuk Bobtail Member

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    Replace Oil Pressure Sensor. Mine was doing same thing and I got my problem fix. Check the link below

    Location Oil Pressure Sensor


    When I replaced the Problem went away.
     
    Dmaksymchuk, Apr 20, 2019
    Dmaksymchuk, Apr 20, 2019
    #10
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