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Fuel issue

Discussion in 'Performance & Fuel' started by maxjordan1982, Jun 7, 2011.

  1. maxjordan1982

    maxjordan1982 New Member

    I have a 2000 sivlerado 1500 5.3. I have 126000 on it. I have noticed over the last couple weeks when I get in the high rpms the truck hesitates a little like its not getting enough fuel. When I punch it from a dead stop it lacks power at first. Also if the truck sits for around 12 hours and I start it up it acts like its not getting enough fuel at first. Any ideas any known issues? I have already done a tune up and changed the fuel filter 2 months ago. Thank you.
     
  2. maxjordan1982

    maxjordan1982 New Member

    I have a 2000 sivlerado 1500 5.3. I have 126000 on it. I have noticed over the last couple weeks when I get in the high rpms the truck hesitates a little like its not getting enough fuel. When I punch it from a dead stop it lacks power at first. Also if the truck sits for around 12 hours and I start it up it acts like its not getting enough fuel at first. Any ideas any known issues? I have already done a tune up and changed the fuel filter 2 months ago. Thank you.
     
  3. vncj96

    vncj96 Epic Member 5+ Years 1000 Posts

    I would send some seafoam through the gas tank, also have the fuel pressure checked as well.
     
  4. ChromeSilver02

    ChromeSilver02 Rockstar 3 Years 500 Posts

    ^^^ I agree
     
  5. silveradotrailblazer

    silveradotrailblazer Epic Member 5+ Years ROTM Winner 5000 Posts

    Besides the Seafoam through the gas tank I would remove the throttlebody and clean both sides with Seafoam spray and a soft toothbrush. Your 2000 has a IdleAirControl (IAC) valve screwed on the side of the throttlebody. I would remove this and also clean with the Seafoam spray. Seafoam also has a relatively new spray can with a hose to clean the intake manifold. Won't hurt to do this also. You can see all the "how to" videos on there website.
     
  6. stephan

    stephan Rockstar 4 Years 5000 Posts

    I would check the fuel pressure. You can borrow a fp guage from most auto parts stores if you leave a $$ deposit. I would drive it with the guage installed & run it at these high rpms & see if your fp is dropping.
     
    1 person likes this.
  7. maxjordan1982

    maxjordan1982 New Member

    I cheched my fuel pressure......it was only at 32psi so I replaced the fuel pump. no more problems..... thanks
     
  8. 98Hotrod98

    98Hotrod98 Rockstar 100 Posts

    Glad to hear your problem is resolved!
     
  9. maxjordan1982

    maxjordan1982 New Member

    I put a gauge on my truck this weekend. All my pressures were very low. My idle psi was at 32psi. I replaced the fuel pump and no more problems. Thanks guys
     
  10. murdog94

    murdog94 Epic Member 5+ Years 5000 Posts

    ****threads merged*******
     

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