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  1. #1

    Default Duramax 6.6 will crank but not start. help please

    went to grocery store and was inside for about 30 mins. came back out, started the truck like normal and it ran for about 30 sec. before dying. now it will crank but not start. fuel level is more than a 1/4 tank so that shouldn't be an issue. any suggestions or help? thanks

    6" RCD Kit
    18" KMC Hoss wheels
    35" Toyo Open Country M/T's
    Flowmaster Force II Cat-Back S.O.S. exhaust
    K&N Filter
    Alpine CDA-9886
    2 10" Pioneer TS-SW2501S4
    Kicker door speakers all around
    1200Watt amp running the subs
    600Watt amp running the door speakers
    De-Letter
    Black GMC Logo
    HID lows and fogs
    Tint: 5% rear, 20% front

    Future upgrades:
    Edge Programmer
    Cold Air Intake
    Silverado SS rear bumper

  2. #2
    Jr. Engineer McMahan's Avatar
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    Jun 2011
    Location
    Korea (for now)
    Posts
    216

    Default

    sounds like the injector pump to me

    2005 Silverado SS
    Color matched AEM CAI,Magnaflow mufflers,cat delete,true dual 2.75" stainless mandrel bent exhaust,Circle D 300K stall,Transgo shift kit,Corvette servos,Detroit Tru-trac,SLP 160* T-stat,Taylor 10.4mm red wires,Comp cams 228R,903 springs,12" cross drilled and slotted rotors,WHEATLEY tuned!!!! Boss 313 22X9.5,Toyo proxes II 305/45/22,

  3. #3

    Default

    id go with injector pump as well^^^

    2000 Chevy Silverado 2500 4x4

    6.0L v8:great: 4L80E

    2.5 in Daystar leveling keys

    285/75/16s BFG ATs on HD wheels

    Cab lights and tool box

  4. #4

    Default

    cool ill look into that! thanks!!!

    6" RCD Kit
    18" KMC Hoss wheels
    35" Toyo Open Country M/T's
    Flowmaster Force II Cat-Back S.O.S. exhaust
    K&N Filter
    Alpine CDA-9886
    2 10" Pioneer TS-SW2501S4
    Kicker door speakers all around
    1200Watt amp running the subs
    600Watt amp running the door speakers
    De-Letter
    Black GMC Logo
    HID lows and fogs
    Tint: 5% rear, 20% front

    Future upgrades:
    Edge Programmer
    Cold Air Intake
    Silverado SS rear bumper

  5. #5

    Default

    I have had mine do this too ( 04 3500 Duramax ) and have always gotten it restarted by simply pumping the primer hand pump on top of the fuel filter untill it gets hard to push down and then it starts right up !!!! After it starts it will run fine untill it does it again ( It has done this 4 times in about 4000 mi and 100+ temps ) I have found it does this when the tank is under about 1/4 full and think it is simply loosing its prime . It may be from the almost empty tank having a slight suction or mebby just having to lift it farther I don't really know and would listen to any thoughts that some one with more experince with these critters might have to say !!! I have a hard time beliving that it is a injection pump because I have worked it quite hard in between time it has done it without any problems as far as power and a injection pump doesn't come and go I don't think !!!!

    Yogi
    Last edited by yogibear; 07-06-2011 at 01:27 AM.

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