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04" Silverado W/5.3liter, Will Crank, but Not Start??

Discussion in 'Performance & Fuel' started by ROCK, Aug 20, 2013.

  1. ROCK

    ROCK New Member

    The engine tries to turn over but doesnt. I have checked the fuel pressure and it is between 50-55. Not sure what else to check.
  2. ChevyBoy2009

    ChevyBoy2009 Rockstar 4 Years 500 Posts

    Fuel pressure regulator?

    99'HEARTBEAT Epic Member Staff Member 5+ Years ROTM Winner 1000 Posts Platinum Contributor

    ****THREAD MOVED****
    To The
    Performance and Fuel Tech Section

  4. dobey

    dobey Rockstar 3 Years 100 Posts

    Hooked up a code scanner? Probably has a code for crank sensor or something that could tell you more.

    - - - Updated - - -

    I don't think the gas powered LS-based V8s have fuel pressure regulators. There is a pressure sensor on top of the pump though that could have gone bad. Should pop a code in the ECM though, that a scanner would point at.
  5. ChevyBoy2009

    ChevyBoy2009 Rockstar 4 Years 500 Posts

    - - - Updated - - -

    My '03 had one...its was a 4.8L V8...i had the same issue and replaced the FPR and all was good
  6. zippstripp

    zippstripp Member 1 Year

    If the engine tries to crank but won't maybe a battery/starter problem.
  7. JimmyA

    JimmyA Member 1 Year 100 Posts

    BATTERY! The Motor Does'nt turn?
  8. ChevyFan

    ChevyFan November Beard Grower - Cancer Fighter Staff Member 5+ Years 5000 Posts

    This should be moved

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