by Anonymous on November 5th, 2009

Anonymous

Question

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I have a 1999 freightliner detroit diesel 60 series 12.7L,
sometimes when I shut the truck down and let it sit for a few minutes and try to start it, it will not start. but it will start with starting fluid, or it will start by a push start. codes 42,43

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Answers. 4 helpful answers below.

  • by allikatzpop on November 22nd, 2009

    allikatzpop

    ddec code 43 coolant level low.check the coolant level sensor by unplugging and jumping the plug w/ a paper clip.

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  • by firehorse on November 21st, 2009

    firehorse

    There is 2 fuel lines in back of the engine coming out of the head,The one on the right side is your return line,in that line there is a inline check valve,you need to replace it. It cost about 95 dollars.


    t

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  • by David_H2489 on January 16th, 2012

    David_H2489

    you have a check valve in back of head and it can get gummed up over time. change thew check valve so you won't be loosing prime after sitting for a while

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  • by DoubleR on December 17th, 2011

    DoubleR

    It sounds like you are loosing your prime on your fuel. I would check all lines for leakage and all fittings for cracks or looseness. Hope this helps.

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You're reading I have a 1999 freightliner detroit diesel 60 series 12.7L, sometimes when I shut the truck down and let it sit for a few minutes and try to start it, it will not start. but it will start with starting fluid, or it will start by a push start. codes 42,43

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