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

171 topics in this forum

1. Dual Alternators and Aux Battery Questions

   By jeffd, April 1, 2020
   • 5 replies
   • 10.6k views
   • 
   • redwngr
   • April 2, 2020

3. Engine Temperature

   By rusrtytr4, February 15, 2020
   • 8 replies
   • 17.8k views
   • 
   • powerhaulic
   • March 28, 2020

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

   By MrGraff, March 19, 2020
   • 0 replies
   • 1.3k views
   • 
   • MrGraff
   • March 19, 2020

5. Fass fuel filter system

   By Lfod1836, March 9, 2020
   • 2 replies
   • 1.4k views
   • 
   • Lfod1836
   • March 10, 2020

6. New GM L5P Duramax parts plant

   By SilveradoX2, March 5, 2020
   • 0 replies
   • 909 views
   • 
   • SilveradoX2
   • March 5, 2020

7. Oil Change Interval

   By withee1319, March 1, 2020
   • 13 replies
   • 33.8k views
   • 
   • Grumpy Bear
   • March 3, 2020

8. Plug in

   By Anderc1, February 19, 2020
   • 5 replies
   • 16.5k views
   • 
   • Sask Farmboy
   • March 1, 2020

9. 2020 2500HD Denali Power Loss

   By tima0101, February 17, 2020
   • 6 replies
   • 7.2k views
   • 
   • Sask Farmboy
   • March 1, 2020

10. Exhaust coming into the cab

    By 426yzf, November 7, 2019
    • 2 replies
    • 1.1k views
    • 
    • Skilpot
    • February 25, 2020

11. Vibration in Steering Column

    By dkhelms, February 18, 2020
    • 2 replies
    • 1.2k views
    • 
    • Tomato
    • February 21, 2020

12. Misc Recalls - First Oil Change

    By dab5577, February 19, 2020
    • 2 replies
    • 2.2k views
    • 
    • dab5577
    • February 20, 2020

13. Please help with a towing question 1 2

    By Pfc1, August 25, 2019
    • 21 replies
    • 4.2k views
    • 
    • CNY_AT4
    • February 14, 2020

14. 2019 Chev 3500HD L5P Shutting Off

    By Pedro DeLeon Jr, August 26, 2019
    • 7 replies
    • 3.8k views
    • 
    • redwngr
    • January 30, 2020

15. rear end fluid

    By rblanch, January 16, 2020
    • 4 replies
    • 4.6k views
    • 
    • rblanch
    • January 17, 2020

16. Running wiring into cab

    By Doug59, January 3, 2020
    • 1 reply
    • 1.1k views
    • 
    • sdelam
    • January 7, 2020

17. L5P Oil Life Monitor mileage?

    By BNSF, December 16, 2019
    • 4 replies
    • 3.7k views
    • 
    • redwngr
    • December 30, 2019

18. Invisible trailer question

    By Michaellallen, November 11, 2019   

    • Invisiblebtrailer
    • 4 replies
    • 1.6k views
    • 
    • ShotgunZ71
    • December 27, 2019

19. Engine light on 2401 miles 1 2 3

    By Jnuehring, September 10, 2019
    • 40 replies
    • 6.3k views
    • 
    • BIll Gladson
    • December 10, 2019

20. 2020 Allison - oil can filter?

    By pw42, November 21, 2019
    • 5 replies
    • 8.2k views
    • 
    • Anthony Greco
    • November 28, 2019

21. Help buying new truck 1 2 3

    By Lfod1836, November 13, 2019
    • 39 replies
    • 5.2k views
    • 
    • powerhaulic
    • November 17, 2019

22. Allison Transmission

    By Teach, August 28, 2019
    • 0 replies
    • 1.7k views
    • 
    • Teach
    • August 28, 2019