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C-12 No Start

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by tetemadi, Jan 21, 2020.

Page 2 of 4
  1. Jan 22, 2020 #11
    spsauerland

    spsauerland Road Train Member

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    West Harrison, In
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    How fresh is the fuel? Probably has JP8 in it.
     
    spsauerland, Jan 22, 2020
    spsauerland, Jan 22, 2020
    #11
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  3. Jan 22, 2020 #12
    tetemadi

    tetemadi Bobtail Member

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    Jan 21, 2020
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    Fuel is new. I drain what was in the tank, however it didn't look bad.
     
    tetemadi, Jan 22, 2020
    tetemadi, Jan 22, 2020
    #12
  4. Jan 22, 2020 #14
    Idaho MTN Driver

    Idaho MTN Driver Bobtail Member

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    Jan 22, 2020
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    I have a C12 in my dump truck - great engine. A couple years ago died on the road. Was getting fuel. Would turn over. Would try to fire with ether.

    Had Cat tech come out to my house and diagnose with his computer. Ended up being the cam sensor. Part was around $170 and house call was around $200. Not sure if this is your issue but sounds similar. Cam sensor on my C12 is located at front of engine block on passenger side (right behind the fan if I recall.) Very easy to replace. Might be able to grab one at a wrecking yard. The Cat tech carried an extra used cam sensor on his service truck because this was a fairly common problem with the C12.

    Not sure if this is your issue but hope it helps.
     
    Idaho MTN Driver, Jan 22, 2020
    Idaho MTN Driver, Jan 22, 2020
    #14
    tetemadi Thanks this.
  5. Jan 22, 2020 #14
    spsauerland

    spsauerland Road Train Member

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    West Harrison, In
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    I think the C-12 in the MTVR is a 70 pin with two speed/timing sensors.
     
    spsauerland, Jan 22, 2020
    spsauerland, Jan 22, 2020
    #14
  7. Jan 22, 2020 #15
    tetemadi

    tetemadi Bobtail Member

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    Jan 21, 2020
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    Right. Will it run if one is bad? I thought I read somewhere that it will run on either.
     
    tetemadi, Jan 22, 2020
    tetemadi, Jan 22, 2020
    #15
  8. Jan 22, 2020 #16
    spsauerland

    spsauerland Road Train Member

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    West Harrison, In
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    Yes will run one one, but takes longer to start on one.
     
    spsauerland, Jan 22, 2020
    spsauerland, Jan 22, 2020
    #16
  9. Jan 23, 2020 #17
    magoo68

    magoo68 Road Train Member

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    st malo mb canada
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    Rpm gauge work when you fired on ether.
     
    magoo68, Jan 23, 2020
    magoo68, Jan 23, 2020
    #17
    spsauerland Thanks this.
  10. Jan 23, 2020 #18
    tetemadi

    tetemadi Bobtail Member

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    Jan 21, 2020
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    Honestly, I didn't even look. I was watching the guy spraying the ether. I will definitely check that next time I work on the truck.
     
    tetemadi, Jan 23, 2020
    tetemadi, Jan 23, 2020
    #18
  11. Jan 23, 2020 #19
    Chubby Fly

    Chubby Fly Medium Load Member

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    Nov 25, 2019
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    A2B48996-295C-42D0-98BC-D8E714A53A2D.jpeg 0017A7CA-5849-4C8A-9563-15961E803DFE.jpeg
     
    Chubby Fly, Jan 23, 2020
    Chubby Fly, Jan 23, 2020
    #19
    magoo68, tetemadi and spsauerland Thank this.
  12. Jan 24, 2020 #20
    tetemadi

    tetemadi Bobtail Member

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    Jan 21, 2020
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    Which port do I read the fuel pressure from? Hopefully, I'll have enough time tomorrow to check the fuel pressure, if not then I will Sunday.
    IMG_20200124_162027.jpg
     
    tetemadi, Jan 24, 2020
    tetemadi, Jan 24, 2020
    #20
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