6.6L Duramax Diesel & Allison Powertrain (L5P/MGM)

32 topics in this forum

1. 20 Duramax MPG.......how are we doing?

   By Peekaboo Bruizer, November 22, 2019
   • 12 replies
   • 1,369 views
   • 
   • samuse
   • 4 hours ago

3. Conventional or full synthetic 1 2 3

   By 07HD, March 24
   • 43 replies
   • 652 views
   • 
   • MrGraff
   • 13 hours ago

4. Engine Temperature

   By rusrtytr4, February 15
   • 8 replies
   • 329 views
   • 
   • powerhaulic
   • Saturday at 01:46 AM

5. Input - HD front springs and Z71 Pkg.

   By MesaRat, March 12
   • 12 replies
   • 314 views
   • 
   • MesaRat
   • March 21

6. S&B Map Sensor Spacer? Oil Filters?

   By MrGraff, March 19
   • 0 replies
   • 65 views
   • 
   • MrGraff
   • March 19

7. Duromax thumping sound

   By William Chapman, March 18
   • 1 reply
   • 139 views
   • 
   • redwngr
   • March 18

8. Exhaust brake or lack there of... need others opinion on this?

   By firedab, March 11
   • 1 reply
   • 182 views
   • 
   • EIKON
   • March 12

9. Fass fuel filter system

   By Lfod1836, March 9
   • 2 replies
   • 166 views
   • 
   • Lfod1836
   • March 10

10. 2020 6.6 D-max towing MPG 1 2

    By Lfod1836, December 4, 2019
    • 19 replies
    • 1,741 views
    • 
    • Lfod1836
    • March 6

11. New GM L5P Duramax parts plant

    By SilveradoX2, March 5
    • 0 replies
    • 120 views
    • 
    • SilveradoX2
    • March 5

12. Oil Change Interval

    By withee1319, March 1
    • 13 replies
    • 404 views
    • 
    • Grumpy Bear
    • March 3

13. Plug in

    By Anderc1, February 19
    • 5 replies
    • 294 views
    • 
    • Sask Farmboy
    • March 1

14. 2020 2500HD Denali Power Loss

    By tima0101, February 17
    • 6 replies
    • 342 views
    • 
    • Sask Farmboy
    • March 1

15. Exhaust Fumes in Cab

    By Skilpot, February 25
    • 3 replies
    • 191 views
    • 
    • MTU Alum
    • February 27

16. Exhaust coming into the cab

    By 426yzf, November 7, 2019
    • 2 replies
    • 382 views
    • 
    • Skilpot
    • February 25

17. Vibration in Steering Column

    By dkhelms, February 18
    • 2 replies
    • 145 views
    • 
    • Tomato
    • February 21

18. Trailer brake

    By Johnny Giesbrecht, January 28
    • 5 replies
    • 323 views
    • 
    • rblanch
    • February 20

19. Misc Recalls - First Oil Change

    By dab5577, February 19
    • 2 replies
    • 292 views
    • 
    • dab5577
    • February 20

20. 2020 L5P First Oil Change 1 2 3

    By MrGraff, October 16, 2019
    • 30 replies
    • 6,326 views
    • 
    • Ewalsh9384
    • February 15

21. Please help with a towing question 1 2

    By Pfc1, August 25, 2019
    • 21 replies
    • 2,015 views
    • 
    • CNY_AT4
    • February 14

22. 2019 Chev 3500HD L5P Shutting Off

    By Pedro DeLeon Jr, August 26, 2019
    • 7 replies
    • 792 views
    • 
    • redwngr
    • January 30

23. rear end fluid

    By rblanch, January 16
    • 4 replies
    • 268 views
    • 
    • rblanch
    • January 17

24. Running wiring into cab

    By Doug59, January 3
    • 1 reply
    • 218 views
    • 
    • sdelam
    • January 7

25. L5P Oil Life Monitor mileage?

    By BNSF, December 16, 2019
    • 4 replies
    • 452 views
    • 
    • redwngr
    • December 30, 2019

26. Invisible trailer question

    By Michaellallen, November 11, 2019   

    • Invisiblebtrailer
    • 4 replies
    • 468 views
    • 
    • ShotgunZ71
    • December 27, 2019