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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
    • 142 views

  2. 2007 Silverado 2500HD Classic Blower Motor

    By Johnny Alford,
    • 1 reply
    • 160 views

  3. Intermittent electrical problem

    By CNH-320,
    • 0 replies
    • 147 views

  4. Electrical Issue

    By imZiRT,
    • 2 replies
    • 223 views

  5. 2002 Sierra 3500 Dually Rear Fender

    By impala454,
    • 2 replies
    • 265 views

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

    By 6Point5Diesel,
    • 2 replies
    • 248 views

  7. Coolant Flow

    By Grubbworm,
    • 5 replies
    • 339 views

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

    By Grubbworm,
    • 31 replies
    • 5.2k views

  9. 06 Duramax clutch fan

    By Steve-Maine,
    • 0 replies
    • 247 views

  10. 2012 HD2500 work truck alternator voltage too high?

    By ifixedit,
    • 2 replies
    • 233 views

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

    By rudylombard79,
    • 2 replies
    • 229 views

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

    By Diana,
    • 1 reply
    • 345 views

  13. All dash lights not working

    By jonboy1919,
    • 10 replies
    • 49.4k views

  14. Dephi VS AC Delco fuel pumps

    By dna9656,
    • 3 replies
    • 263 views

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

    By Boerboel413,
    • 1 reply
    • 159 views

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

    By KYFinest90Proof,
    • 3 replies
    • 296 views

  17. Need a VIN number for BCM flash

    By Fixxer Automotive,
    • 2 replies
    • 560 views

  18. Intermediate Parking Brake Cable Help

    By 02 GMC 2500HD,
    • 10 replies
    • 21.4k views

  19. Service Trailer Brake System?

    By sdeeter19555,
    • 4 replies
    • 505 views

  20. 252k - transmission gave its last

    By sdeeter19555,
    • 7 replies
    • 672 views

  21. transmission input speed sensor problem

    By richard wysong,
    • 2 replies
    • 796 views

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

    By casey.mikl,
    • 79 replies
    • 54.7k views

  23. Vents in the dash

    By Steve-Maine,
    • 0 replies
    • 279 views

  24. Panel below bumper on 06 GMC

    By Steve-Maine,
    • 3 replies
    • 329 views

  25. 1500HD Grille Guard

    By Adrian17,
    • 4 replies
    • 492 views
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