N14 problems

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by Crimedogg82, Sep 23, 2020.

  1. Crimedogg82

    Crimedogg82 Bobtail Member

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    Sep 23, 2020
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    She doesn’t loose speed she looses power an sound a little rough like the it’s the manifold can any one give me some pointers or a little advice
     
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  3. xsetra

    xsetra Road Train Member

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    Aug 21, 2011
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    Check the hoses to your air cooler, they could be loose.
    Fuel filter could be plugging up.
    Air in fuel system
    Injector going bad.

    I don't understand the comments about the manifold.

    Many possibilities.
    Good luck.
     
  4. 6wheeler

    6wheeler Road Train Member

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    Aug 30, 2009
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    Same problem here. C15. Buying a new fuel pump tomorrow. Pressure is down currently by 30 psi running at 50 psi.
     
  5. Smellfunny

    Smellfunny Road Train Member

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    Jan 28, 2012
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    If you have a broken head bolt on a N-14 it sounds like an exhaust leak. Usually happens on the back head but one of the bolts close to the middle head on passenger side (or from most I have ran across).
     
    xsetra Thanks this.
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