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Peterbilt 379 wont start

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by Blue pete69, Oct 1, 2020.

  1. Oct 1, 2020 #1
    Blue pete69

    Blue pete69 Bobtail Member

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    Oct 1, 2020
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    I got a 1997 peterbilt 379 With a Detroit series 60 in it and when you try to start it the stop engine light and low coolent light flash. It is full of coolest and has a brand new censor and has power to the censor. I believe it may be a wiring issue any tips on where to start
     
    Blue pete69, Oct 1, 2020
    Blue pete69, Oct 1, 2020
    #1
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  3. Oct 1, 2020 #2
    AModelCat

    AModelCat Road Train Member

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    Right at the connector for the sensor.
     
    AModelCat, Oct 1, 2020
    AModelCat, Oct 1, 2020
    #2
  4. Oct 1, 2020 #4
    Blue pete69

    Blue pete69 Bobtail Member

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    Oct 1, 2020
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    I bent the prong down bc it was bent up a little and it has power all the way to the sensor
     
    Blue pete69, Oct 1, 2020
    Blue pete69, Oct 1, 2020
    #4
  5. Oct 1, 2020 #4
    AModelCat

    AModelCat Road Train Member

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    But is the return wire ok? Power side is only half the circuit.
     
    AModelCat, Oct 1, 2020
    AModelCat, Oct 1, 2020
    #4
  7. Oct 1, 2020 #5
    Old Man

    Old Man Road Train Member

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    Does it have a shutdown override switch. Hold it down and see if it will run.
     
    Old Man, Oct 1, 2020
    Old Man, Oct 1, 2020
    #5
  8. Oct 1, 2020 #7
    Blue pete69

    Blue pete69 Bobtail Member

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    I tried that but it make no difference
     
    Blue pete69, Oct 1, 2020
    Blue pete69, Oct 1, 2020
    #7
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