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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. 2013 2500HD 6.0L intermittent no crank no start

    By linc45bn,
    • 1 reply
    • 260 views

  2. 2007 Silverado 2500HD Classic Blower Motor

    By Johnny Alford,
    • 1 reply
    • 200 views

  3. Intermittent electrical problem

    By CNH-320,
    • 0 replies
    • 189 views

  4. Electrical Issue

    By imZiRT,
    • 2 replies
    • 264 views

  5. 2002 Sierra 3500 Dually Rear Fender

    By impala454,
    • 2 replies
    • 363 views

  6. 2011 Suburban 2500 - Replacement Exhaust Manifold (Driver's Side)

    By 6Point5Diesel,
    • 2 replies
    • 309 views

  7. Coolant Flow

    By Grubbworm,
    • 5 replies
    • 379 views

  8. Some Maintenance I have done to my truck today. 1 2 3

    By Grubbworm,
    • 31 replies
    • 5.3k views

  9. 06 Duramax clutch fan

    By Steve-Maine,
    • 0 replies
    • 280 views

  10. 2012 HD2500 work truck alternator voltage too high?

    By ifixedit,
    • 2 replies
    • 281 views

  11. Disc brake caliper guide pin seals..???

    By rudylombard79,
    • 2 replies
    • 255 views

  12. How to find a GPS and kill switch on a 2007 chevy

    By Diana,
    • 1 reply
    • 379 views

  13. All dash lights not working

    By jonboy1919,
    • 10 replies
    • 49.8k views

  14. Dephi VS AC Delco fuel pumps

    By dna9656,
    • 3 replies
    • 303 views

  15. just put a brand new tranny dip stick in, Now it wont pull out?

    By Boerboel413,
    • 1 reply
    • 182 views

  16. 2007 Chevrolet Silverado 2500HD Classic 6.6L LBZ Duramax diesel

    By KYFinest90Proof,
    • 3 replies
    • 336 views

  17. Need a VIN number for BCM flash

    By Fixxer Automotive,
    • 2 replies
    • 591 views

  18. Intermediate Parking Brake Cable Help

    By 02 GMC 2500HD,
    • 10 replies
    • 22k views

  19. Service Trailer Brake System?

    By sdeeter19555,
    • 4 replies
    • 540 views

  20. 252k - transmission gave its last

    By sdeeter19555,
    • 7 replies
    • 716 views

  21. transmission input speed sensor problem

    By richard wysong,
    • 2 replies
    • 896 views

  22. 2011 2500hd 6.0 misfire 1 2 3 4 6

    By casey.mikl,
    • 79 replies
    • 55.5k views

  23. Vents in the dash

    By Steve-Maine,
    • 0 replies
    • 296 views

  24. Panel below bumper on 06 GMC

    By Steve-Maine,
    • 3 replies
    • 377 views

  25. 1500HD Grille Guard

    By Adrian17,
    • 4 replies
    • 520 views
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