5.3 afm ??

Discussion in 'Chevy Silverado Forum (GMC Sierra)' started by Musky50, Dec 13, 2011.

  1. Musky50

    Musky50 New Member

    Is active fuel management standard on all 5.3's? I just purchased a 2009 with the 5.3, someone said they all had it but I thought it was only on the higher end packages.
  2. Burden33

    Burden33 Epic Member 5+ Years 500 Posts

    Nope as far as i know they all have it the 4.8 i know dont havt it and im not sure about the 6.2 but i dont think they have it either
  3. JnBama

    JnBama Rockstar 4 Years 500 Posts

    2009 5.3 yes and no for 4.8 and AFM available for high end V6 pkgs for Impala , Malibu and others . welcome to the club, have fun fishing and Merry Christmas
    Last edited: Dec 13, 2011

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