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Hybrids, XFE, & Active Fuel Management

GM's Hybrid Trucks & SUVs, thel saving XFE model, and the Active Fuel Management system for the 2007-2013 model years.

419 topics in this forum

  1. E-85 Refueling Events 1 2 3 4 5

    By minibike132,
    • 66 replies
    • 57,595 views

  2. Smell gas and no visible leaks

    By Darren Place,
    • 1 reply
    • 32 views

  3. AFM delete

    By Joel Starling,
    • 9 replies
    • 182 views

  4. Driver side signal and brake lights

    By BassWood Outdoors,
    • 3 replies
    • 80 views

  5. Silverado Part ID

    By Oorah-wesome,   
    • 1 reply
    • 75 views

  6. left turn and brake light problem

    By Richard F Hale Jr.,   
    • 0 replies
    • 55 views

  7. Header+Exhaust HP?

    By Gooseslayer717,
    • 4 replies
    • 101 views

  8. AFM OIL CONSUMPTION ISSUSES

    By WHITE DIAMOND 12,   
    • 3 replies
    • 146 views

  9. Multiple misfires on every cylinder at idle

    By Chrisp,
    • 5 replies
    • 155 views

  10. New to me truck has thrown 3 codes already. Needing help

    By Thomas Sword,
    • 0 replies
    • 93 views

  11. XFE Fuel Economy

    By swathdiver,
    • 2 replies
    • 156 views

  12. Gas leak

    By Sng1989,   
    • 7 replies
    • 223 views

  13. Increase My Fuel Economy 1 2 3 4

    By BrandonM,
    • 54 replies
    • 22,286 views

  14. A/C starts Cold then goes warm

    By gosforth,
    • 2 replies
    • 170 views

  15. Compatible rear axles

    By Drastic396,   
    • 4 replies
    • 189 views

  16. Help, Weird rapid clunk and thunp felt in brake pedal

    By dchfm123,
    • 4 replies
    • 115 views

  17. Oil pump? Afm Cylinder 4 misfire

    By My07sh*tbox,   
    • 6 replies
    • 270 views

  18. Question about afm 1 2

    By Pgrecs,   
    • 19 replies
    • 996 views

  19. Z71 Confusion

    By JacobM529,
    • 1 reply
    • 184 views

  20. MAP and MAF issue rough idle vacuum leak 592-600 idle rpm

    By bg1988,
    • 0 replies
    • 147 views

  21. What was/is GM Thinking??? 1 2 3 4

    By NHUSA,
    • 46 replies
    • 1,506 views

  22. 2012 GMC Sierra

    By William Henderson,
    • 1 reply
    • 275 views

  23. Non opening valve after start up 5.3 amf

    By Bigbassman001,
    • 1 reply
    • 182 views

  24. Unlocking lifter.....VLOM problem?

    By Ryan Bokros,
    • 6 replies
    • 18,727 views

  25. Help! Little big of white smoke coming from exhaust?

    By enorwood22,   
    • 1 reply
    • 262 views
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