truck missing need help

Discussion in 'Trucks [ Eighteen Wheelers ]' started by homesick, Apr 30, 2009.

  1. Pawnd

    Pawnd Medium Load Member

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    Apr 8, 2009
    Chasing wind
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    With these engines can you spray WD40 around the various parts as on a gas engine to find small vacuum, intake, ect leaks?
     
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  3. Six8888

    Six8888 Bobtail Member

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    Apr 16, 2009
    Fontana, Ca
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    A dyno will not show what injector is bad. A dyno is not a magic bullet that tells all, it will only confirm you have a problem and may help diagnose problem if the mechanic can see what its doing on the dyno.
     
  4. cat from the valley

    cat from the valley Medium Load Member

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    Dec 8, 2008
    jamaica
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    maybe timing sensor is going, it soon maybe gets missing like your truck
     
  5. the virginian

    the virginian Bobtail Member

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    Mar 14, 2009
    luray va.
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    hook up coumpter and go down the road had the same problem with n14 only we found it injtor was cuting out
     
  6. homesick

    homesick Light Load Member

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    Nov 26, 2007
    memphis,tn
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    i tried that and the shop couldnt find out which injector was bad
     
  7. PAJ1979

    PAJ1979 Light Load Member

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    Mar 28, 2009
    Southern Illinois
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    My Cummins ISM had the same symptoms a couple weeks back, it vibrated and missed bad under load but ran fine at steady throttle. No check engine light or any codes.

    The Cummins shop took about 20 minutes to diagnose a bad injector. If your shop cant identify which injector is bad, find a new mechanic.
     
  8. black_dog106

    black_dog106 Road Train Member

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    Mar 29, 2009
    MA
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    If your shop cant identify which injector is bad, find a new mechanic.[/quote]
    excellent advice right there
     
  9. homesick

    homesick Light Load Member

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    Nov 26, 2007
    memphis,tn
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    i think i will try cummins out
     
  10. PAJ1979

    PAJ1979 Light Load Member

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    Mar 28, 2009
    Southern Illinois
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    Was the cummins shop any better at finding the problem?
     
  11. homesick

    homesick Light Load Member

    161
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    Nov 26, 2007
    memphis,tn
    0
    i will take it there next week when i get back home.if its a injector i can get done a lot cheaper at home.
     
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