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2000-2014 Silverado HD & Sierra HD

The workhorses. Discussion for the 2500HD and 3500HD heavy-duty trucks. Covers the 2014 HD transition year.

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  1. Duramax Diesel & 8.1L Big Block

    The torque monsters. Tech for the LB7, LLY, LBZ, LMM, LML Duramax engines and the 8.1L Vortec (L18). Covers the Allison 1000 transmission.

    1.7k
    posts

14,430 topics in this forum

  1. when adding fuel

    By bikernut,
    • 4 replies
    • 1.1k views

  2. Number of O2 sensors? 1 2

    By sdeeter19555,
    • 18 replies
    • 60.7k views

  3. program the lock sequence

    By Vin69,
    • 4 replies
    • 1.4k views

  4. What's the check tire pressure set point? 1 2

    By tomseeley,
    • 16 replies
    • 30.6k views

  5. 2015 Silverado ltz 5.3 v8 Blower Motor

    By Demonetized Content,   
    • 2 replies
    • 3.5k views

  6. 2012 Silverado 1500 WT bed replacement

    By Queyit,
    • 6 replies
    • 4.5k views

  7. 03-06 cruise control

    By riverhawk,
    • 13 replies
    • 45.5k views

  8. Where do they hide all the electrical grounds?

    By sdeeter19555,
    • 7 replies
    • 84.8k views

  9. 2006 2500HD transfer case

    By JSchettler80,
    • 6 replies
    • 11.2k views

  10. First Time Towing - Car Haul from Colorado to Virginia (2002 Suburban 2500 / 8.1L / LT)

    By jpeterferrell,
    • 9 replies
    • 2.1k views

  11. 6.0 supercharging options for tow

    By Gmstanley,
    • 5 replies
    • 6k views

  12. 2006 2500HD outside mirrors don't stay in place.

    By Steve-Maine,
    • 2 replies
    • 997 views

  13. 01 Radio Volume issue am/fm

    By Fredendall,   
    • 6 replies
    • 13.9k views

  14. Electrical gremlins

    By Blue924.9,
    • 3 replies
    • 1.2k views

  15. no start on 2012 gmc sierra

    By john yazzie,
    • 2 replies
    • 1.1k views

  16. PO171 and PO174, 2012 6.0l

    By sdeeter19555,
    • 2 replies
    • 1.5k views

  17. 03 Silverado 2500hd steering gear input shaft leak

    By grlloyd,
    • 0 replies
    • 1.4k views

  18. Programming Keys, 2012 Sierra HD

    By C/K Man,
    • 12 replies
    • 2k views

  19. 05 Suburban Auto 4wd Help

    By Gmctodd16,
    • 3 replies
    • 1.5k views

  20. Transfer Case Failure

    By JeremyJ,
    • 2 replies
    • 1.4k views

  21. Need some help

    By mwolf380,
    • 10 replies
    • 1.2k views

  22. advice for exhaust swap 2005 2500

    By Eddd,
    • 2 replies
    • 1k views

  23. frame

    By tomcat70,
    • 3 replies
    • 3.9k views

  24. frame

    By tomcat70,
    • 0 replies
    • 688 views

  25. Chevy 3500hd TCM issues.

    By Matthew. Collins,
    • 0 replies
    • 1.2k views
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