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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.

563 topics in this forum

  1. Excessive oil through pcv valve problem low pressure problem

    By Jake2588,
    • 2 replies
    • 497 views

  3. Oil catch can

    By stevenstark711,
    • 3 replies
    • 453 views

  4. Oil Consumption 2011 Silverado with AFM 5.3

    By 2011rado,   
    • 6 replies
    • 7.4k views

  5. 2013 Sierra SLT 5.3

    By Pgrecs,   
    • 1 reply
    • 572 views

  6. 2012 5.3 rebuild, Major OH? with Non-AFM parts.

    By Tazzerblue,
    • 1 reply
    • 531 views

  7. AFM disabler

    By NHUSA,
    • 0 replies
    • 504 views

  8. DOD lifter issue L83

    By bobradley4,   
    • 0 replies
    • 1.2k views

  9. Trouble with Control arms McGaughy’s 9in lift 2012 Ltz

    By Z71_9inlift,
    • 1 reply
    • 483 views

  10. Bed off center

    By GJB,
    • 12 replies
    • 551 views

  11. AFM fouling fix w/o programming

    By ZombieSmasher,   
    • 0 replies
    • 1.1k views

  12. Trailer brake controller/brake pedal issues

    By Chad van hove,
    • 4 replies
    • 728 views

  13. Can someone please help, High ethanol readings. 07 Silverado 1500

    By Sisu8888,
    • 0 replies
    • 338 views

  14. HELP Brake light

    By Jgervin85,
    • 0 replies
    • 299 views

  15. Should I get a transmission flush or just change?

    By Troy2k11oneowner,
    • 4 replies
    • 582 views

  16. Oil indicator showing on 2010 GMC Sierra 1500 5.3L

    By MoonshineRunner,
    • 9 replies
    • 645 views

  17. Biggest Tire On Stock

    By Chevy2011AZ,   
    • 0 replies
    • 1.1k views

  18. Question for the pros

    By Muskyhunter,
    • 1 reply
    • 639 views

  19. 2008 Silverado LT 5.3 lifter pushrod problem

    By Sgt.Childers,
    • 0 replies
    • 1.3k views

  20. Afm delete still throwing check engine codes after tune 1 2

    By Yamahayz400f,
    • 16 replies
    • 13.5k views

  21. Bad cold start noise (2008 GMC Sierra w/ super 10 muffler)

    By Juanazo,
    • 2 replies
    • 495 views

  22. 2007 GMT900 Silverado 5.3 Misfire

    By StayClassy94,   
    • 0 replies
    • 619 views

  23. Transmission noise? Please help

    By Daniel_B,
    • 0 replies
    • 463 views

  24. Spongy brakes

    By Dingusthe,   
    • 0 replies
    • 600 views

  25. Knocking noise when turning

    By eli127,
    • 0 replies
    • 458 views

  26. Engine noise. Passenger side

    By shewchuk316,   
    • 3 replies
    • 542 views


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