Loses power around 45-55mph. helpp

Discussion in 'GM Powertrain' started by Silverado1500, Feb 12, 2010.

  1. Silverado1500

    Silverado1500 Rockstar 100 Posts

    i can leave my foot at one spot and i would accelerate great, till i hit the 45-55 mark and it just loses all the acceleration. any ideas?
    could it be because im runnin 305/70/16s with stock gearing?
    i have a 2000 1500 silverado 5.3
  2. Silverado1500

    Silverado1500 Rockstar 100 Posts

    it loses acceleration at around 55 then i have to give the petal about 1-2 more inches for it to pick back up. when i changed the filter, the guy told me that i had water in it? but it did it before and after i changed it
    ive been reading around and some say my fuel pump is starting to fail. i dont have to money to fix this
  3. Gambit

    Gambit Rockstar 100 Posts

    Hmmm De Ja Vu. I could have sworn i answered this in another thread.
  4. Silverado1500

    Silverado1500 Rockstar 100 Posts

    haha yea, sorry. i wasnt getting to many posts in the other one so i figured i might have posted it in the wrong section

    TYMBOM Former Member

    Yeah, double post.

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