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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.

410 topics in this forum

  1. AFM Delete Parts List

    By same101us,
    • 2 replies
    • 2,980 views

  2. 2005 GMC Sierra Hybrid fault codes

    By polishpickles,
    • 0 replies
    • 1,054 views

  3. 2013 5.3 engine problem

    By Armorcrew99,
    • 3 replies
    • 1,912 views

  4. Buying a used AFM 5.3, any tips?

    By Ben Girard,
    • 14 replies
    • 3,909 views

  5. Silverado hybrid no crank

    By Fiveoford89,
    • 0 replies
    • 1,518 views

  6. 6.2 Gas Milage..... 1 2 3 4

    By 04SILVRADO,
    • 54 replies
    • 30,224 views

  7. AFM oil comsumption possible solution

    By spankrz,
    • 10 replies
    • 7,190 views

  8. e85 mpg drop 1 2 3 4 5

    By fred walters,
    • 60 replies
    • 13,535 views

  9. Fuel Range

    By bno525,
    • 4 replies
    • 2,278 views

  10. ?'s about Hybird pickups

    By doverarjim,   
    • 6 replies
    • 2,484 views

  11. High Mileage AFM 5.3

    By JaBradt85,
    • 13 replies
    • 12,320 views

  12. Questions for NNBS Hybrid owners

    By Wolverine350R,   
    • 1 reply
    • 2,571 views

  13. What exactly was the xfe

    By mike94silverado,
    • 11 replies
    • 2,629 views

  14. Mpg When Towing 1 2

    By twh7mm,
    • 23 replies
    • 7,567 views

  15. Should I buy a Sierra SLT w/5.3l AFM? Or avoid it? 1 2 3

    By Nvd,
    • 33 replies
    • 12,605 views

  16. AFM Problem

    By nashss,
    • 10 replies
    • 4,166 views

  17. Declining MPG's

    By jester73,
    • 10 replies
    • 3,058 views

  18. 800HP Chevy electric truck

    By Silverado4x4,
    • 1 reply
    • 2,279 views

  19. Mpg and ethanol

    By Matte454,
    • 9 replies
    • 2,294 views

  20. 6.2 And Premium Fuel 1 2 3

    By Baja 252,
    • 33 replies
    • 12,867 views

  21. Fuel mileage update

    By sic lsx,
    • 5 replies
    • 2,359 views

  22. Wow! New Plugs = +20% Better Mpg

    By rt66er,
    • 14 replies
    • 5,873 views

  23. How to tell when AFM is activated?

    By bdox,
    • 9 replies
    • 5,398 views

  24. New silverado 5.3 gas mileage question? 1 2

    By Kody,
    • 20 replies
    • 8,699 views

  25. MPG vs. changing weather 1 2

    By 99gst_racer,
    • 23 replies
    • 4,407 views
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