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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. 2500hd with 4 button 4x4 switch

    By snake river red,
    • 5 replies
    • 3k views

  2. Turn signal not working when headlight ON & brake lights ON

    By unflagging,
    • 0 replies
    • 762 views

  3. STUCK in 4LO! Code P2771

    By CapnDean,
    • 1 reply
    • 6.3k views

  4. Spark Plug Protector

    By AugustF15,
    • 6 replies
    • 962 views

  5. Hard Starts in the cold weather 1 2

    By insidethreat07,
    • 29 replies
    • 39.2k views

  6. Will the transmission from my 2002 Silverado 2500HD 6.0 work in my 2003 Tahoe 5.3?

    By NAmenta,
    • 3 replies
    • 1.9k views

  7. 2006 Chevy Silverado Extended Cab - Auxiliary power outlet wiring

    By rcraig114,
    • 3 replies
    • 2.7k views

  8. Tow haul

    By Chevy04,
    • 3 replies
    • 1.2k views

  9. Low Radio Volume

    By Rob Hardesty,
    • 3 replies
    • 12.7k views

  10. Turn signal trouble

    By Road runner Dale,
    • 1 reply
    • 908 views

  11. Fast blinking blinker

    By dsr611,
    • 5 replies
    • 3.4k views

  12. Backup camera tie in to taillights

    By ABQ-Jammer,
    • 2 replies
    • 1.2k views

  13. Fog Light Adapter

    By ABQ-Jammer,
    • 4 replies
    • 2.4k views

  14. IAC, idle issues 2000 Silverado 5.3

    By Steve40th396,
    • 2 replies
    • 2k views

  15. Help deciding with tow vehicle

    By Tmmoll,
    • 6 replies
    • 1.1k views

  16. BCM options. It won't turn on fog lights. And prove climate control unit is the problem

    By bobejones,
    • 4 replies
    • 3.6k views

  17. Steering Column + ignition cylinder swap

    By Speener,
    • 0 replies
    • 1.2k views

  18. My 2001 Silverado 6.0 motor my tow haul switch activates light but not changing in shifting goes into coast mode when you let off throttle and makes a horrendous noises

    By PaulTodd,
    • 0 replies
    • 775 views

  19. 03 2500hd w 8.1 gauge cluster stopped working

    By enosez,
    • 1 reply
    • 1.2k views

  20. UFO! Unidentifiable Falling Object.

    By donald price,
    • 1 reply
    • 767 views

  21. Buying a 2007 GMC 2500HD with 120k Miles for 13k?

    By stupendous_man,
    • 4 replies
    • 3.2k views

  22. vin decoding

    By roy67ss,
    • 2 replies
    • 1.3k views

  23. 2003 Silverado 2500 HD nerf bar extender

    By The Lone Ranger,
    • 3 replies
    • 1.5k views

  24. Can anyone tell me what this is?

    By Demandzm,
    • 9 replies
    • 1.6k views

  25. Darn Rats chewed my fuel line- now injector knock

    By hiking_mike,
    • 2 replies
    • 825 views
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