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  1. #1

    Default 2003 chevy silverado question (new guy)

    I just replaced the heads on a 2003 5.3L engine after a blown head gasket. All went well started and ran smoothe for 3-4 minutes then died and will not restart. Fuel pump not making normal sounds. Could this be related to the anti-theft system?

  2. #2

    Default

    Moved to power train tech***

    I doubt that it has anything to do with the anti-theft system. You can try disconnecting the battery for 15-20 minutes, reconnect and see if it starts. When I installed the programmer on my 02 silverado it tripped the anti-theft devise, disconnecting the battery for 15 minutes reset it. You might want to put a fuel pressure gauge on at the fuel rail and see what kind of pressure you are getting

    1995 Silverado 4x4
    6" BDS Suspension Lift-3" Body Lift-Add A Leaf in rear -Trailmaster SSV Shocks-Duel Steering Stabilizer Kit -AirAid Cold air intake-
    4.56 Gears with Detroit Auburn Locker-Pro-Comp Traction Bars with duel shocks-Aluminum Skid Plate Kit-38.5" x 16.5" Mickey Thompson Baja Claws-Constant Dropping fuel gauge

    2005 Yukon XL Jet Power Programmer, Bilstein Shocks, Bilstein rear springs, Helwig Anti-sway bars, EGR Window Visors, EGR Hood Shield, Denali Headlights, Headlight harness upgrade, GE NightHawk Bulbs, White Night Rear lighting system, Russell Braided SS brake lines, PowerStop Brake pads, PowerStop cross drilled and Slotted Rotors, http://www.gmtruckclub.com/forum/sho...5-GMC-Yukon-XL
    2002 Silverado ext cab 2wd (Sold)
    2003 Yukon XL (Totaled)

  3. #3

    Default

    Disconnecting the battery cables and holding together for 30sec or so will reset the ecm. Also check the pump relay and like already stated by Pikey, check the pressure at the rail. most importantly, since you have just done work to the truck, make sure to check all grounds and connections.

  4. #4

    Default That worked!

    That worked. seems to be running ok now

    I doubt that it has anything to do with the anti-theft system. You can try disconnecting the battery for 15-20 minutes, reconnect and see if it starts. When I installed the programmer on my 02 silverado it tripped the anti-theft devise, disconnecting the battery for 15 minutes reset it. You might want to put a fuel pressure gauge on at the fuel rail and see what kind of pressure you are getting[/QUOTE]

  5. #5

    Default

    Great!!!!1

    1995 Silverado 4x4
    6" BDS Suspension Lift-3" Body Lift-Add A Leaf in rear -Trailmaster SSV Shocks-Duel Steering Stabilizer Kit -AirAid Cold air intake-
    4.56 Gears with Detroit Auburn Locker-Pro-Comp Traction Bars with duel shocks-Aluminum Skid Plate Kit-38.5" x 16.5" Mickey Thompson Baja Claws-Constant Dropping fuel gauge

    2005 Yukon XL Jet Power Programmer, Bilstein Shocks, Bilstein rear springs, Helwig Anti-sway bars, EGR Window Visors, EGR Hood Shield, Denali Headlights, Headlight harness upgrade, GE NightHawk Bulbs, White Night Rear lighting system, Russell Braided SS brake lines, PowerStop Brake pads, PowerStop cross drilled and Slotted Rotors, http://www.gmtruckclub.com/forum/sho...5-GMC-Yukon-XL
    2002 Silverado ext cab 2wd (Sold)
    2003 Yukon XL (Totaled)

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