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Douglass A Posted on Mar 30, 2019

What is the ignition pick up and where is it located on a 1998 gmc sierra 5.7 engine

It cranks and dies . if you pour gas in the throddle body manually it runs . when you stop it dies

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  • Posted on Mar 30, 2019
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Your throttle body is bad u have to change it

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  • Posted on Mar 30, 2019
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Actually i would like to correct you. My brother had a ford mustang that would only run while you poured gas in intake. Come to find out the car was in security mode due to changing ignitions. Shut the whole car down pretty much. Not really sure if could be your problem though because of the year truck. His car was a 2001. Its worth looking into because if your truck is more electric than mechanical and the ignition was tampered with then it could be your issue. Or the ignition malfunctioned and lost its code to code with the engine computer.

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  • Posted on Mar 30, 2019
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Factory Security will most times shut down the fuel pump!! If no security issues then lean towards to fuel pump

  • 5 more comments 
  • Dustin Isselhardt Mar 30, 2019

    Factory Security will most times shut down the fuel pump!! If no security issues then lean towards to fuel pump

  • Dustin Isselhardt Mar 30, 2019

    Factory Security will most times shut down the fuel pump!! If no security issues then lean towards to fuel pump

  • Dustin Isselhardt Mar 30, 2019

    Factory Security will most times shut down the fuel pump!! If no security issues then lean towards to fuel pump

  • Dustin Isselhardt Mar 30, 2019

    Factory Security will most times shut down the fuel pump!! If no security issues then lean towards to fuel pump.

  • Dustin Isselhardt Mar 30, 2019

    Factory Security will most times shut down the fuel pump!! If no security issues then lean towards to fuel pump.

  • Dustin Isselhardt Mar 30, 2019

    Factory Security will most times shut down the fuel pump!! If no security issues then lean towards to fuel pump.

  • Dustin Isselhardt Mar 30, 2019

    Factory Security will most times shut down the fuel pump!! If no security issues then lean towards to fuel pump.

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5 Related Answers

hotrodtod38

Todd Bradshaw

  • 141 Answers
  • Posted on Feb 13, 2009

SOURCE: 1998 GMC Sierra won't fire and run

INJECTOR MAYBE?

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jordangerow8

  • 16 Answers
  • Posted on Aug 23, 2009

SOURCE: 1998 GMC SIErra

Check your transmission. Look underneath the truck and see if you see moisture around the transmission pan. If you see any indication of that, you may have a huge issue on your hands. Your reverse gear is seized to the Drive Gear. However hopefully it's something like needing a new clutch or a clutch adjustment

Anonymous

  • 22 Answers
  • Posted on Oct 07, 2009

SOURCE: engine cranks but will not start

fuel filter or most likely the injectors are done

Anonymous

  • 1168 Answers
  • Posted on Oct 29, 2009

SOURCE: I have A 1991 GMC SIERRA, 350,no fuel no spark,

Do you have power to the injectors? One of the wires to the injector will come on for a couple seconds as soon as you turn the key to the on position.The computer controls the ground side. If you do not get power to one of them start looking for an open circuit. The same power source will also go to your ignition coil and ignition module. If you do not have power on the pink wire to the coil apply a temporary fused battery power source to it and give it a try, this will also power up the injectors.
Check it out and let me know.

Anonymous

  • 1 Answer
  • Posted on Dec 08, 2009

SOURCE: 2006 gmc sierra 1500 stalled and will not start.

i have a 06 sierra that done the same thing and it was the distributer gear stripped

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