Question about Chevrolet Silverado 1500

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1996 silverado 5.7 vortec cranks but wont start. fuel pump, gauges, "idiot" lights, blinkers do not work. flashers and all the rest of lights operate. Just replaced coil and this happens

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  • wanerracing2 Oct 14, 2008

    I have a 98 gmc 1500 5.7 vortec with csfi,, plenty of pressure was driving down I 5 truck just bogged out and now wont start unless you pour gas down the intake, truck runs great as long as u pour it in put new filter and pump... anyone know why dont have codereader not showing light anyway

  • hacksaw89 Oct 15, 2008

    1998 z71 5.7 350
    will not start, It just turns over. I've already changed the fuel pump and the wiring harness(d1414d) inside the steering column. The fuel pump does NOT hum when the key is turned on. The old pump wasn't humming either. I have checked everything I know which isn't much. All the fuses look good. HELP, I can afford to keep sinking money into it on stuff that isn't helping. Thanks, Dave


  • Anonymous Nov 06, 2008

    96 won't unless you put gas into the in take. HELP



    THANKS...

  • KBarber44 Dec 16, 2008

    96 z71 won't start sometimes. put new fuel pump started a couple times. replaced fuel pump relay , fuel filter and fuel sensor . still may start or may not......usually not , any ideas ?????! thanks, Kevin



    KBarber44@yahoo.com

  • sspescado Feb 03, 2009

    97 5.7 is getting fuel to outside t body but not starting ,but will start if fuel added to t body ,do you have any info?

  • Anonymous Mar 09, 2009

    yea same here if got any ideas hit me up sweetyeoj55@aol.com

  • niteboss955 Apr 28, 2009

    i have a 97 suburban -stopped running-fuel to the throttle body-but
    will not go any further or start-pour in fuel-runs great-replaced
    fuel pump relay-pump now hums-like it should-put in a used
    computer about 8 monthes ago-could be the problem-it regulates
    fuel pressure build up causing fuel to go to injectors

  • Anonymous May 03, 2009

    Same vehicle. New pump, filter, dist. cap and rotor. no fuel going to EFI. Fuel relay is clicking in and fuel pumps through the new filter. Truck will fire when gas is poured into the air intake. Is it a sensor or the mass air valve?

  • davev042608 May 21, 2009

    new pump 2-3 years ago,new filter ,new fuel pressure regulator resently.it takes about 2-5 minutes to start in the am. once it starts if it dont sit for to long it will start rite up. ?????

  • v compos May 11, 2010

    I had same problem on 3/3/09, truck will start up if fuel was added to throttle. founded low pressure on fuel pump at 20 psi and you need about 45 psi to run properly.

    And once you replaced you fuel ones, you will need to check fuel pressure evry time you start getting ploblems .

    some other problems went not starting, are starter or ing hot wire to the starter have this wire replace.

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Had the same problem with my '96 Silverado with 350 Vortec. The truck would only crank. It would start if fuel was poured down the throttle body. Could not hear the fuel pump hum. Fuse was good, but could not hear relay click. Relay was good, Did some electrical wiring trouble shooting. Turned out that one of the connectors that clasp onto one of the pins of the fuel pump relay wasn't making a good connection, too loose. I just stuck a peice of wire into the connector and pushed the relay back in. Relay clicked, Truck Started. It's been more than 4 yrs. since I made that McGuyver fix. Still firing.

Posted on Jan 22, 2009

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350 vortec 1997 z71 runs great for 10 or 12 miles then dies and wont start for 10 min. new fuel pump filters plugs and batery

Posted on Jun 28, 2010

  • Ralph Reeves
    Ralph Reeves Aug 03, 2012

    have your ignition module checked it most likely over heating and shutting down

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