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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. 2001 chevy 2500 6.0 rough running and no power on acceleration

    By ian h,
    • 5 replies
    • 1k views

  2. Rubber body mounts

    By Steve-Maine,
    • 1 reply
    • 512 views

  3. NV4500 Rattle/Grinding Noise

    By Coop8202,   
    • 1 reply
    • 771 views

  4. 2009 Sierra 2500HD Auto lock 1 2

    By Jason Norris,
    • 17 replies
    • 3.5k views

  5. Interior swap 1 2 3 4 6

    By 08gmc17,
    • 84 replies
    • 217.4k views

  6. body bushings rubber or red plastic

    By Steve-Maine,
    • 2 replies
    • 497 views

  7. 06 extended cab right rear door handle

    By Steve-Maine,
    • 4 replies
    • 666 views

  8. 2007 Silverado 3500 Classic 4WD, 4 Door, 8' Bed (RPO - HVY, Z85, SRW) - Front suspension rebuild - Replacement spindles are too small.

    By jeffjackson,
    • 6 replies
    • 682 views

  9. 2011 GMC Sierra 2500 hd P0325 code

    By chris12385,
    • 1 reply
    • 664 views

  10. 2008 3500HD dual tank issue

    By Jeepfreak81,
    • 1 reply
    • 503 views

  11. 05 TO 03 ENGINE SWAP EMISSIONS QUESTION

    By Eddd,
    • 14 replies
    • 1.1k views

  12. Oil cooler lines assembly failure

    By Donald Steiner,
    • 1 reply
    • 626 views

  13. Transmission temperature 4l60e

    By Robby Shutts,
    • 11 replies
    • 1.4k views

  14. AC help! Running out of diagnostic ideas

    By Cofferson,
    • 1 reply
    • 714 views

  15. Review Wanted - Turtleworks Engineering NOCO GCP Series Plug Bracket for 2011-2014 Chevy Silverado 2500HD/3500HD Trucks

    By Turtleworks Engineering,
    • 2 replies
    • 1.3k views

  16. Multiple codes intermittent limp mode

    By Jason Norris,
    • 4 replies
    • 1.4k views

  17. Tailgate Band Emblem

    By touretteboy,
    • 3 replies
    • 1.2k views

  18. P0300 Missfire at my whits end

    By Griffdawg6969,
    • 7 replies
    • 1.4k views

  19. Miss fire only when going uphill on highway

    By Brayden1999,
    • 4 replies
    • 1k views

  20. Attempted theft. Key won’t turn back

    By Brianna C,
    • 3 replies
    • 1.1k views

  21. Location of blend door actuator

    By richard wysong,
    • 4 replies
    • 2.5k views

  22. Is there an idle-up mode on a 2007.5 6.0 3500HD?

    By atikovi,
    • 1 reply
    • 796 views

  23. Turning off Automatic headlights 1 2

    By Zimmski_Bud,
    • 17 replies
    • 15.3k views

  24. Brakes

    By sdeeter19555,
    • 2 replies
    • 1.5k views

  25. 2001 Chevy 2500hd engine ticking

    By Drew grimes,
    • 4 replies
    • 1.5k views
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