Starting issue please help

Discussion in 'Chevy Silverado Forum (GMC Sierra)' started by 1999chevroletsilverado, Oct 16, 2012.

  1. I have a 99 2500 and once I shut the truck off and it sits for like more than 5 mins and when I turn the key it takes like 5-7 seconds to start. It will roll over but just takes like 5 mins to fire up. But if I shut it off and come back before 5 mins it will start right up. And if I get home at night and wake up in the morning to go start it, it will start right up. What could be the culprit??
  2. Pikey

    Pikey Moderator Staff Member 5+ Years ROTM Winner 5000 Posts

    Do you have a check engine light on?
  3. tbplus10

    tbplus10 Epic Member Staff Member 5+ Years 5000 Posts Platinum Contributor

    I'd look at the fuel delivery system first, check fuel pressures for static and running.
  4. PolishSilverado

    PolishSilverado New Member

    I also have the same problem on a 00 silverado 2500 it starts then dies and it keeps doing that till i hit the throttle to keep it running then it idles low anything?
  5. j cat

    j cat Epic Member 5+ Years 1000 Posts

    SAME THING . check fuel pressure . 60-62 psi key on engine off. engine running need more than 52psi.

    if its not the fuel pump the pressure with the engine running should be 57psi in most vehicles I have tested.

    if it starts then stalls I would say its around 50 psi.
  6. 69duke

    69duke New Member

    Sounds like you might have one or more fuel injectors spritzing. Or leaking. When the truck sets the fuel injectors leak gas into the cylinders and is causing a flooded condition. Try cleaning with Seafoam or other injector cleaner. Remove them and clean them. Look for the instructions to test the injectors to see what kind of spray they are shooting,.

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