6.6L Duramax Diesel (L5P)

205 topics in this forum

1. Fuel Filter - 2021 L5P

   By Laidback, June 7, 2021
   • 8 replies
   • 13.1k views
   • 
   • shadow gray 2020 hd
   • October 5, 2021

2. Transmission

   By Mat gruber, May 18, 2021
   • 2 replies
   • 3.4k views
   • 
   • Laidback
   • May 24, 2021

3. Garage Door Opener - No Power

   By 2506S, May 13, 2021
   • 0 replies
   • 1.1k views
   • 
   • 2506S
   • May 13, 2021

4. Free DEF from Dealer

   By CMillSilverado, May 10, 2021
   • 2 replies
   • 3.3k views
   • 
   • 20L8TSierra24
   • May 13, 2021

5. Hot plastic smell

   By BLV, April 23, 2021
   • 3 replies
   • 7.3k views
   • 
   • BLV
   • April 28, 2021

6. Emissions System Error

   By H.B. Shannon, April 20, 2021
   • 4 replies
   • 45.1k views
   • 
   • nick112288
   • May 11, 2021

7. Tires rotation and tpms issues

   By Newduramaxh*ar, April 15, 2021
   • 1 reply
   • 1.8k views
   • 
   • redwngr
   • April 15, 2021

8. 3 inch cognito lift

   By ND763, March 24, 2021
   • 2 replies
   • 3.9k views
   • 
   • Dave M.
   • June 5, 2021

9. Problem with intel beam not working

   By BenJG, March 15, 2021
   • 9 replies
   • 3.4k views
   • 
   • RugbyRef
   • March 16, 2021

10. fifth wheel hitch

    By Mardo, March 13, 2021
    • 12 replies
    • 7.6k views
    • 
    • 2500W/T
    • August 30, 2021

11. 2021 2500 AT4 payload

    By Mardo, March 11, 2021
    • 8 replies
    • 7.4k views
    • 
    • redwngr
    • August 11, 2021

12. Oil

    By mostcorey95, February 16, 2021
    • 3 replies
    • 5.8k views
    • 
    • Grumpy Bear
    • February 20, 2021

13. 2021 DMAX - cold temp issues?

    By ArrowsmithPML, February 12, 2021
    • 13 replies
    • 5.8k views
    • 
    • redwngr
    • February 26, 2021

14. Barney

    By Barney, February 10, 2021
    • 0 replies
    • 492 views
    • 
    • Barney
    • February 10, 2021

15. 2021 DMAX - cold temp issues? 1 2

    By ArrowsmithPML, February 10, 2021
    • 16 replies
    • 13k views
    • 
    • ArrowsmithPML
    • February 16, 2021

16. 2020 Duramax Cold start tick

    By combat1500, February 10, 2021
    • 1 reply
    • 3k views
    • 
    • Colossus
    • February 12, 2021

17. Need Deleted L5P Advice 1 2 3

    By Brozat4, January 30, 2021
    • 34 replies
    • 90.4k views
    • 
    • PBNB
    • June 8

18. Game Changer - Banks PedalMonster

    By u3putt, January 21, 2021
    • 11 replies
    • 18.6k views
    • 
    • rickmazz
    • November 2, 2021

19. Retractable Tonneau - who has used them in snowy climates?

    By SpeedyD, December 30, 2020
    • 2 replies
    • 2k views
    • 
    • redwngr
    • January 6, 2021

20. Air bags

    By inquenciocha, December 28, 2020
    • 3 replies
    • 2.4k views
    • 
    • rblanch
    • January 7, 2021

21. Dual battery/alternator configuration?

    By Hank B, December 27, 2020
    • 2 replies
    • 6.1k views
    • 
    • Hank B
    • December 28, 2020

22. Winter fuel for L5P

    By COB II, December 21, 2020
    • 3 replies
    • 6k views
    • 
    • u3putt
    • January 8, 2021

23. Engine operating temp

    By Jfg1300, December 21, 2020
    • 7 replies
    • 2.9k views
    • 
    • Keith_Schumaker
    • January 24, 2021

24. Fuel filter change with push-button start

    By Penndel Zeke, December 19, 2020
    • 8 replies
    • 83.4k views
    • 
    • JJJR
    • March 22

25. Silverado 2500HD Issue

    By TFern, December 18, 2020
    • 11 replies
    • 4.4k views
    • 
    • u3putt
    • January 15, 2021