6.6L Gas V8 & HD Transmission Powertrain (L8T/MYD)

187 topics in this forum

1. 22 gas transmission service

   By Hoginedgewood, 16 hours ago
   • 0 replies
   • 67 views
   • 
   • Hoginedgewood
   • 16 hours ago

3. 2020 chev silverado 2500 hd growling noise during acceleration from somewhere in front 1 2

   By Bruce proko, January 19
   • 15 replies
   • 2.6k views
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   • Bsggsb
   • 19 hours ago

4. 2024 2500 transmission leak 1 2 3

   By stympyctlan, June 23, 2023
   • 41 replies
   • 18.7k views
   • 
   • Jrod.Milton
   • 21 hours ago

5. Normal L8T noises? 1 2

   By BuckWallace, October 27, 2023
   • 15 replies
   • 5k views
   • 
   • Aimatdeer
   • Wednesday at 09:08 PM

6. How many fuel pumps will this engine eat?

   By Jeater, September 30, 2021
   • 8 replies
   • 12.1k views
   • 
   • lundimpact1775
   • November 18

7. How reliable is the 6.6 gasser? 1 2 3 4 5

   By HyperX, February 8
   • 65 replies
   • 37.8k views
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   • bruceb58
   • November 12

8. display went blank

   By Traumajunkie, November 8
   • 0 replies
   • 162 views
   • 
   • Traumajunkie
   • November 8

9. scan gauge 3 1 2 3 4 5

   By Gregg Staples, December 1, 2023
   • 74 replies
   • 6.2k views
   • 
   • Capt Bob
   • November 7

10. 2023 6.6L gas single exit black tip cat back system 1 2

    By reb0957, June 11, 2023
    • 17 replies
    • 5.8k views
    • 
    • revrnd
    • November 2

11. 2020 2500Hd feels like it is surging when towing a hill 1 2

    By Addison Reeder IV, November 14, 2020
    • 22 replies
    • 13.6k views
    • 
    • zmania99
    • October 27

12. AC Delco Oil Filter PF63... Questions on Filter Revisions.... 1 2 3

    By SoCal Angler, October 9
    • 44 replies
    • 2.5k views
    • 
    • lineman1234
    • October 22

13. Oil question

    By Npd15, October 17
    • 9 replies
    • 794 views
    • 
    • diyer2
    • October 21

14. Pulsar LT, anybody using one?

    By Sonders, October 18
    • 1 reply
    • 355 views
    • 
    • TS423
    • October 19

15. L8T dead on the highway 92k miles 1 2

    By lundimpact1775, September 30
    • 17 replies
    • 1.6k views
    • 
    • lundimpact1775
    • October 11

16. Strongly considering 3500 Reg Cab camper build

    By jrubicon, September 23
    • 3 replies
    • 626 views
    • 
    • Cofage Gaetaph
    • October 10

17. 2024 10-Speed Transmission Service 1 2 3

    By ssgballistics, August 24
    • 30 replies
    • 2.6k views
    • 
    • Another JR
    • September 19

18. 2024 Silverado ZR2 2500 6.6L gas engine failure 1 2 3

    By Eric.V, April 4
    • 33 replies
    • 14.4k views
    • 
    • Hector S
    • September 18

19. I would like to start a NEW catch can post for all to follow. 1 2 3 4 6

    By Jettech1, January 30, 2023
    • 88 replies
    • 14k views
    • 
    • lineman1234
    • September 16

20. "Allison" 10 speed hard upshift gears 7-8 1 2

    By UWSkier, June 25
    • 21 replies
    • 3.1k views
    • 
    • UWSkier
    • September 12

21. 2020 L8T 2500 Transmission Temperature Reaches 230 while towing

    By allycat75, September 8
    • 4 replies
    • 715 views
    • 
    • Another JR
    • September 9

22. Add engine oil!!! 1 2 3 4 17

    By Truston Gunter, December 15, 2021
    • 242 replies
    • 61.6k views
    • 
    • Antny
    • September 5

23. 6.6 GAS with 37 inch tires

    By Tyler Marchak, August 26
    • 6 replies
    • 1.1k views
    • 
    • Pryme
    • September 3

24. Are the 6.6 l8t engines inherently noisy? 1 2 3

    By DuckBoi, May 10, 2023
    • 42 replies
    • 11.5k views
    • 
    • D Ray
    • September 1

25. Towing with or without a WD hitch/sway control?

    By switters, August 30
    • 6 replies
    • 689 views
    • 
    • Pryme
    • August 30

26. '24 2500HD Gasser Allison 10spd Valve Body Issue

    By silversteverado, August 18
    • 13 replies
    • 1.4k views
    • 
    • lineman1234
    • August 29