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Intermittent crank no start when warm

Discussion in 'Freightliner Forum' started by DMAX66, Oct 5, 2014.

  1. Oct 5, 2014 #1
    DMAX66

    DMAX66 Light Load Member

    170
    146
    Nov 11, 2010
    Chicagoland
    0
    I have a 1999 FLD with a CAT C12 and it has a very intermittent crank no start when warm. It has only happened twice in about 10k miles. When the truck is shut off and started again within 30min the engine cranks but will not start. After I let it sit for 10min or so it fires up. Anything easy I can check when the problem happens? It's so intermittent I don't think a shop will be able to duplicate the problem to do any diag.
     
    DMAX66, Oct 5, 2014
    DMAX66, Oct 5, 2014
    #1
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  3. Oct 5, 2014 #2
    Skate-Board

    Skate-Board Road Train Member

    3,801
    3,994
    Aug 9, 2014
    Merrimack, NH
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    Are you turning the key and starting it real fast? Some older trucks require the computer to get up and running
     
    Skate-Board, Oct 5, 2014
    Skate-Board, Oct 5, 2014
    #2
    Trubb43 and Mooose Thank this.
  4. Oct 5, 2014 #3
    Ribeye

    Ribeye Light Load Member

    139
    106
    Jan 4, 2012
    0
    Just a guess, but maybe air is getting into fuel line/fuel filter sometime, so when you try to restart it, it's not getting fuel? This rings a bell in my head, like maybe my old w900 with cat c-15 550 used to do that, but rarely. Come to think of it, I do recall having to pump the primer pump a few times to get it started after fueling up and then trying to restart, so that is similar. Or maybe you just need to replace the fuel filters, like you got some bad fuel here or there. Worth a shot.
     
    Ribeye, Oct 5, 2014
    Ribeye, Oct 5, 2014
    #3
  5. Oct 5, 2014 #4
    DMAX66

    DMAX66 Light Load Member

    170
    146
    Nov 11, 2010
    Chicagoland
    0

    I was thinking about that last night, I think I was just turning the key and hitting the starter button.
     
    DMAX66, Oct 5, 2014
    DMAX66, Oct 5, 2014
    #4
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