Duramax Diesel & 8.1L Big Block

585 topics in this forum

1. Sunroof opens by itself, then won't close

   By Kevin Shannon, August 19, 2019   

   • sunroof
   • 2 replies
   • 10.5k views
   • 
   • myHD truck
   • September 1, 2019

2. Turbo Whistle

   By Shawn T, July 7, 2005
   • 0 replies
   • 10k views
   • 
   • Shawn T
   • August 22, 2005

3. Must have mods for 6.6L

   By Cody1774, February 2, 2014
   • 10 replies
   • 9.9k views
   • 
   • Cody1774
   • February 3, 2014

4. Got a no start condition

   By Greyfurhunter, January 18, 2019
   • 5 replies
   • 9.9k views
   • 
   • Greyfurhunter
   • January 21, 2019

5. Parasitic draw

   By Pda1122, December 9, 2018
   • 4 replies
   • 9.4k views
   • 
   • carkhz316
   • February 14, 2019

6. 6.2 Diesel Hard Start

   By pmwheels, December 11, 2007
   • 0 replies
   • 9.4k views
   • 
   • pmwheels
   • January 22, 2011

7. Best overall duramax mod kit?

   By Brickie, February 4, 2005
   • 0 replies
   • 9.2k views
   • 
   • Brickie
   • April 10, 2007

8. Vegetable Oil As An Additive

   By sean_ch, October 9, 2008
   • 0 replies
   • 9.1k views
   • 
   • sean_ch
   • November 2, 2008

9. Toyota 1500/2500/3500

   By dcsnyder, June 3, 2006
   • 0 replies
   • 8.9k views
   • 
   • dcsnyder
   • August 28, 2007

10. Fuel additives

    By Outdoorsman, October 2, 2012
    • 7 replies
    • 8.9k views
    • 
    • Cowpie
    • January 9, 2016

11. Hydro boost issue 2014 2500?

    By mikes455wagon, September 23, 2014
    • 12 replies
    • 8.6k views
    • 
    • Mortgage Paul
    • February 28, 2016

12. Losing Pressure At Fuel Filter?

    By mef, October 31, 2007
    • 0 replies
    • 8.4k views
    • 
    • mef
    • December 28, 2007

13. 2011 Allison Transmission Surging

    By demcoinc4, August 31, 2011
    • 0 replies
    • 8.2k views
    • 
    • demcoinc4
    • October 2, 2011

14. 2001 6.6 Duramx Cooling Sys

    By Indian81, December 16, 2010
    • 0 replies
    • 8.1k views
    • 
    • Indian81
    • February 17, 2011

15. Help with pitman arm 2005 GMC Sierra 2500hd

    By theisaacbolen, March 9, 2018   

    • matinence
    • steering
    • (and 1 more)

      Tagged with:

      • matinence
      • steering
      • suspension
    • 3 replies
    • 8.1k views
    • 
    • Charles_Colfax
    • September 9, 2018

16. 1st Time Diesel Owner Questions

    By donniecfd32, June 20, 2010
    • 0 replies
    • 8k views
    • 
    • donniecfd32
    • October 2, 2011

17. 2005 sierra duramax wont crank over

    By born-to-fish-, April 12, 2014
    • 2 replies
    • 8k views
    • 
    • born-to-fish-
    • April 16, 2014

18. new injectors now has rough idle?

    By goatboy0067, March 14, 2015
    • 2 replies
    • 7.9k views
    • 
    • goatboy0067
    • March 16, 2015

19. Switching from a 5.7L to a 6.5L

    By 98silvz71, January 4, 2006
    • 0 replies
    • 7.9k views
    • 
    • 98silvz71
    • January 11, 2006

20. ZF6 6 speed manual 2wd to 4wd conversion

    By Andrew Warren, November 8, 2020   

    • diesel 2500
    • 6.6L Duramax
    • (and 3 more)

      Tagged with:

      • diesel 2500
      • 6.6L Duramax
      • 6speed
      • manual 4x4
      • manual
    • 1 reply
    • 7.8k views
    • 
    • davester
    • November 8, 2020

21. 2011 LML p003a code

    By papy, June 22, 2023
    • 2 replies
    • 7.8k views
    • 
    • papy
    • June 22, 2023

22. 02 GMC 2500hd diff bracket Bushings

    By Brandon18, January 28, 2023
    • 7 replies
    • 7.7k views
    • 
    • davester
    • July 4, 2024

23. Synthetic oil for diesel

    By ToBNamedL8r, April 19, 2005
    • 0 replies
    • 7.5k views
    • 
    • ToBNamedL8r
    • May 11, 2005

24. Smoke That Pipe!

    By slugbelch, February 1, 2008
    • 0 replies
    • 7.1k views
    • 
    • slugbelch
    • November 23, 2009

25. How To Tell Lbz Or Lly

    By bobpowell, January 24, 2008
    • 0 replies
    • 7.1k views
    • 
    • bobpowell
    • January 25, 2008