2015-2019 Silverado & Sierra HD Troubleshooting

732 topics in this forum

1. Chevy vs GMC

   By Kathie O, July 4, 2019   

   • sierra
   • 3 replies
   • 1.1k views
   • 
   • EXSlider400
   • July 5, 2019

3. Random Relay Clicking Noise near dash

   By Texas_Signmaker, June 30, 2019
   • 3 replies
   • 8.9k views
   • 
   • Texas_Signmaker
   • July 1, 2019

4. Fluid leak from Bell housing 1 2

   By Jksb751, March 21, 2019
   • 15 replies
   • 14.1k views
   • 
   • rascalmafia
   • June 28, 2019

5. 194K mile Transmission Failure REPAIRED

   By Jedibusiness, June 14, 2019   

   • 6.0
   • wt
   • (and 3 more)

     Tagged with:

     • 6.0
     • wt
     • 6l90
     • 2015
     • 2500hd
   • 6 replies
   • 3.5k views
   • 
   • MNorby
   • June 26, 2019

6. 2015 Duramax Oil Leak- 3500 miles 1 2 3

   By AdamD2C, August 1, 2015
   • 35 replies
   • 45.3k views
   • 
   • gearheadesw
   • June 26, 2019

7. Correct Torsion key bolt position

   By OpsWest, June 18, 2019
   • 6 replies
   • 1.5k views
   • 
   • OpsWest
   • June 23, 2019

8. L5P bottom engine tick

   By Rme2513, June 22, 2019
   • 0 replies
   • 7.3k views
   • 
   • Rme2513
   • June 22, 2019

9. 2016 2500 HD trans doesn't shift up when towing 1 2 3

   By RamblinFever, March 25, 2017
   • 31 replies
   • 18.4k views
   • 
   • Jak860
   • June 4, 2019

10. T.S.B. for the 70 m.p.h. shake

    By massbowtie, May 19, 2019
    • 5 replies
    • 3.9k views
    • 
    • rlme36
    • June 4, 2019

11. Sierra 2500 6.0 Bogging under high load No CEL

    By theegovernor, June 3, 2019
    • 4 replies
    • 2k views
    • 
    • JD110
    • June 4, 2019

12. 2018 Allison slow to downshift

    By mfsanford, May 26, 2019
    • 2 replies
    • 548 views
    • 
    • mfsanford
    • May 27, 2019

13. Engine Tick leading to Exhaust Valve Tip Failure at 190K.

    By Jedibusiness, May 18, 2019   

    • p0303
    • p0306
    • (and 4 more)

      Tagged with:

      • p0303
      • p0306
      • exhaust manifold
      • exhaust valve
      • heads rebuild
      • 2015 hd wt
    • 5 replies
    • 2.6k views
    • 
    • Jedibusiness
    • May 24, 2019

14. Poor Chrome Quality 1 2

    By Brunomax, January 29, 2016
    • 17 replies
    • 10k views
    • 
    • rlk105mm
    • May 23, 2019

15. 2500 Loud Ticking And Lights Flashing

    By Ackcap, May 1, 2019   

    • 2500 2018 engine
    • 11 replies
    • 2.2k views
    • 
    • avalonandl
    • May 20, 2019

16. 2017 2500 trailer brake issue

    By doublearrow, March 26, 2018
    • 10 replies
    • 12.2k views
    • 
    • redwngr
    • May 19, 2019

17. 2015 GMC SIERRA DENALI REGEN ASSISTANCE

    By pratt9234, May 16, 2019   

    • 2500
    • hd
    • (and 5 more)

      Tagged with:

      • 2500
      • hd
      • duramax
      • diesel
      • p21dd
      • limp
      • limitations
    • 0 replies
    • 1.2k views
    • 
    • pratt9234
    • May 16, 2019

18. Oil in intake after turbo on 2015 lml

    By Jksb751, May 14, 2019
    • 3 replies
    • 1.2k views
    • 
    • rascalmafia
    • May 16, 2019

19. 2015 HD 8" Mylink Bluetooth failure

    By MightyBobo, June 5, 2018
    • 1 reply
    • 1.3k views
    • 
    • Weezy
    • May 13, 2019

20. Issues with park assist and folding tow mirrors in cold weather

    By canorton3, February 9, 2019
    • 1 reply
    • 502 views
    • 
    • Weezy
    • May 13, 2019

21. 2015 lml Knock on Deceleration

    By Jksb751, May 12, 2019
    • 0 replies
    • 1.7k views
    • 
    • Jksb751
    • May 12, 2019

22. Power Folding Mirrors

    By CruseMissle, October 2, 2018
    • 12 replies
    • 17.7k views
    • 
    • [email protected]
    • May 8, 2019

23. P21DD diagnostic code

    By Car54, May 8, 2019
    • 0 replies
    • 8k views
    • 
    • Car54
    • May 8, 2019

24. Fuel Gauge not matching Fuel Range

    By jefabell, April 25, 2019
    • 8 replies
    • 11.1k views
    • 
    • swathdiver
    • April 26, 2019

25. Bilstein B8 5100 series

    By Country Bumpkin 2003, April 24, 2019   

    • suspension lift
    • 8 replies
    • 1.1k views
    • 
    • GTBensley
    • April 25, 2019

26. Rust on new 2500HD

    By Demar, January 10, 2019
    • 4 replies
    • 2.6k views
    • 
    • rocnrol
    • April 21, 2019