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Help 02 Freightliner classic xl starting issues

Discussion in 'Freightliner Forum' started by woodsplitter, Sep 20, 2022.

  1. Sep 20, 2022 #1
    woodsplitter

    woodsplitter Bobtail Member

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    Aug 30, 2012
    all over the US
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    I’ve got a n14 and it takes about 40 seconds for it to crank every time even after it’s warm. After it starts it runs fine. I’ve inspected the check valve and I don’t think it’s that. Any advice is appreciated. Thanks In advance
     
    woodsplitter, Sep 20, 2022
    woodsplitter, Sep 20, 2022
    #1
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  3. Sep 20, 2022 #2
    062

    062 Road Train Member

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    I’d check fuel pressure while cranking. It takes a little over 20psi before the injectors fire.
     
    062, Sep 20, 2022
    062, Sep 20, 2022
    #2
  4. Sep 20, 2022 #4
    woodsplitter

    woodsplitter Bobtail Member

    16
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    Aug 30, 2012
    all over the US
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    Ok thank you. How do I check the fuel pressure??
     
    woodsplitter, Sep 20, 2022
    woodsplitter, Sep 20, 2022
    #4
  5. Sep 20, 2022 #4
    062

    062 Road Train Member

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    Easiest way would be to find someone with a gauge that has the compucheck fitting.
    The other is to put a pressure gauge in line after the fuel pump.
     
    062, Sep 20, 2022
    062, Sep 20, 2022
    #4
    woodsplitter and QUALITYTRUCK Thank this.
  7. Sep 21, 2022 #5
    uncleal13

    uncleal13 Road Train Member

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    Humboldt, Sk
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    Did you change the fuel filter recently?
    I have seen Baldwin filters cause this. The o-ring is too thin allowing just a small amount of air in causing the truck to lose prime when off, but once running it is overcome.
     
    uncleal13, Sep 21, 2022
    uncleal13, Sep 21, 2022
    #5
    LoneRanger and QUALITYTRUCK Thank this.
  8. Sep 21, 2022 #6
    woodsplitter

    woodsplitter Bobtail Member

    16
    2
    Aug 30, 2012
    all over the US
    0
    No I haven’t but I will definitely check this out thanks
     
    woodsplitter, Sep 21, 2022
    woodsplitter, Sep 21, 2022
    #6
  9. Sep 21, 2022 #7
    woodsplitter

    woodsplitter Bobtail Member

    16
    2
    Aug 30, 2012
    all over the US
    0
    Ok thanks for the help. This is where I will start.
     
    woodsplitter, Sep 21, 2022
    woodsplitter, Sep 21, 2022
    #7
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