Question about 2002 Chevrolet Silverado 1500

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02 Chevy 1500 v6, started to lose power for a moment and then would be fine. After a day or two it lost all power - not electric but engine. Bought a code reader that shows no problems. replaced the alternator and battery. Still wont start. Sounds like its not getting a spark - not even a little fire. Help, I gotta get to work.

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  • Paul
    Paul May 09, 2009

    DIdn't lose electric power but the engine quit running. headlights, guages worked. I replaced the battery and alternator because it didn't take much to drain the battery when trying to restart.

    Thanks

  • Paul
    Paul May 09, 2009

    Sounds like hope...THANK YOU! I will let you know.

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  • Chevrolet Master
  • 1,000 Answers

When you say it has lost power, the engine is running but is bogging down or is it electrical because you replaced the battery and alternator, no headlights or gauges are not working.
Let me know.
Regards,

Posted on May 09, 2009

  • Bruce Bracey
    Bruce Bracey May 09, 2009

    Ok,

    Remove one of the spark plug wires from the spark plug, insert a screw driver end into the spark plug boot, hold it 1/4 inch from the engine block, crank the engine over and see if you have any spark.

    If that is good.

    You will need to borrow or purchase a fuel pressure gauge ($30 to $40).

    Connect the pressure gauge to the fuel rail test port, turn the key to run position, read the pressure (45 - 55 lbs.) . Watch the gauge and make sure it holds the pressure, you don't want it to leak down to 0.

    Start there and let me know what you find.

    Regards,

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  • Chevrolet Master
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Check ignition fuses and injector fuses ignition coils or module or high voltage switch.if all is good. scan it check crank sensor or pcm.problems.

Posted on May 09, 2009

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