Red stop engine light?

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by earnies2, Apr 14, 2021.

  1. earnies2

    earnies2 Medium Load Member

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    What are some of the things to check when a stop engine light comes on in a 2012 ISX 12...
     
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  3. Farmtractor9900

    Farmtractor9900 Light Load Member

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    Fluid levels. engine oil, coolant, alternator/water pump/AC belts.
     
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  4. earnies2

    earnies2 Medium Load Member

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    Thanks I am on my way to check it out. the driver checked the fluids and said they are all ok. It has no A/C belt. I will check the altonator...thanks
     
  5. uncleal13

    uncleal13 Road Train Member

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    On my DD16 Detroit. The alternator belt also drives the water pump. So the engine would get an over temperature alarm.
     
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  6. earnies2

    earnies2 Medium Load Member

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    This is a ISX12 the a/c belt is separate
     
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  7. Goodysnap

    Goodysnap Road Train Member

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    Any other lights, CEL , DEF or emissions Derate.?

    Is there any low coolant warning, even though its full...... level sensor or float?
     
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  8. pavrom

    pavrom Road Train Member

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    ...just make sure gas pedal is all the way to the floor !
     
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  9. Antinomian

    Antinomian Road Train Member

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    Five replies so far and no one has mentioned checking what code(s) it threw.
     
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  10. Goodysnap

    Goodysnap Road Train Member

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    Thats kinda given. Hes asking for common places to look without hooking up. Which in most cases is like sharpening a knife in the dark. A waste of time and painful.
     
  11. Dave_in_AZ

    Dave_in_AZ Road Train Member

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    Water in the oil = stop.

    Could be just a sensor gone south too.

    Think I'd rig a jumper to bypass the sensor in the coolant surge tank first.

    I drove mine until I think it had all the emissions codes when the SCR died, and still never got the red light.

    Sniff around your coolant sensors. Eliminate those first.
     
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