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Thread: loss of power

  1. #1

    Default loss of power

    ok so what would cause a 99 5.3l silverado to loose power, sputter and back fire but not throw a warning light. its fine one min bad the next any ideas
    99 Silverado Ext Cab Z71 Third Door
    All stock for now

  2. #2
    Newbie Chris Parks's Avatar
    Join Date
    Oct 2011
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    Cedar Hill, Missouri, United States
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    6

    Default

    im thinking it could be your ignition system,it might not be burnning all the gas in the chambers

  3. #3

    Default

    How old is your fuel filter? It seems to that a clogged filter would do something like what you have described.

  4. #4

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    it ended up being my fuel pump

  5. #5
    Sr. Engineer
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    Dec 2011
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    11-22-boogie woogie avenue
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    Default

    Quote Originally Posted by Chris Parks View Post
    im thinking it could be your ignition system,it might not be burnning all the gas in the chambers
    What does this mean ..not trying to be smart or anything just wondering??

    Usually fuel related if no light..but run it long enough you will get a light.
    Hard to diagnose a vehicle these days without a code .

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