Question about 1993 GMC Sierra

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Truck wont start till after I spray starting fluid in tbi, then runs fine

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  • ray M
    ray M Feb 17, 2012

    Does this happen every start or just the first start of the day?

  • airmarineinc
    airmarineinc Feb 17, 2012

    every start.

  • William Johnson Feb 17, 2012

    is your check engine light on?

  • airmarineinc
    airmarineinc Feb 17, 2012

    and engine light stays on

  • ray M
    ray M Feb 17, 2012

    What engine code do you have?

  • airmarineinc
    airmarineinc Feb 18, 2012

    it is a 1991 sierra 5.0

  • ray M
    ray M Feb 18, 2012

    Did you test the engine light with an obd tester? If you don't have this tool take it to autozone and they will check it for you and then let us know what code you get.

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Check to make sure that your not loosing fuel pressure once your truck dies if there is a leak your fuel system may have to prime itself. Also check and make sure your fuel system is holding the correct fuel pressure while running you could have a fuel pump thats going bad on you.

Posted on Feb 22, 2012

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Posted on Jan 02, 2017

  • 4088 Answers

SOURCE: my gmc sierra wont start it has fuel to the rack, and new plugs,

No fuel from main fuel line? Possible plugged fuel filter? Blown fuel pump fuse? Bad fuel pump or plugged intake sock filter in fuel tank?

Posted on Jul 16, 2009

  • 65 Answers

SOURCE: My 91 GMC Sonoma will not start. Its something

there a grounding problem in the wiring have you tried to disconnect the horn wiring if so you try tracingit from there if you know how to

Posted on Aug 01, 2009

ronaldo_ross
  • 1056 Answers

SOURCE: My 1997 GMC Safari Van will not start when cold

Check for a bad temperature sensor. To check it, remove it first. Using an ohmmeter measure its resistance, which should decrease when dipped in hot water. If the the resistance remain high and doesnt change then you know it is bad, and you don't end up wasting money on buying one when it is still good.

Posted on Aug 12, 2009

  • 278 Answers

SOURCE: 89 suburban. No spray from injectors after replacing ESC

The fuel pump should be in the 20s. Also it could be losing presure slowly. Leave the fuel pump pressure gage on for at least 2 to 3 hours to see if it is losing pressure - It's a start

Posted on Oct 14, 2009

alicantecoli
  • 22095 Answers

SOURCE: 2000 GMC Jimmy wont start. Seems to crank just

check for a spark if no spark and no fuel to feed bar for injectors ,then try spare key if that doesnt work then its dealer only to look at immobilisor

Posted on Nov 21, 2009

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