Engines & Drivetrain

2,741 topics in this forum

1. Torque Converter for 8L90 1 2

   By Denali34, August 14, 2019
   • 18 replies
   • 38k views
   • 
   • AdioSS
   • March 20, 2020

2. Sierra 6.2L exhaust

   By Red Zone 4x4, March 14, 2020
   • 3 replies
   • 990 views
   • 
   • AdioSS
   • March 20, 2020

3. 2014 Sierra 5.3L Intake Valve Deposits (100,000 miles)

   By jandrewf, March 14, 2020
   • 13 replies
   • 6.6k views
   • 
   • mookdoc6
   • March 17, 2020

4. Multiple Cylinder Deactivation Solenoid Circuit Codes

   By dtreid, March 17, 2020
   • 0 replies
   • 7.4k views
   • 
   • dtreid
   • March 17, 2020

5. Air Filters

   By Bob2C, March 10, 2020
   • 10 replies
   • 1.1k views
   • 
   • SierraHD17
   • March 16, 2020

6. Shell Rotella Gas Truck 1 2 3 4

   By Bob2C, December 22, 2019
   • 48 replies
   • 9.1k views
   • 
   • Doublebase
   • March 14, 2020

7. BORLA Exhaust for the 2015-2019 Silverado/Sierra 2500

   By ian@borla, February 4, 2019
   • 9 replies
   • 2.5k views
   • 
   • kenny_r
   • March 13, 2020

8. Considering a ProCharger Supercharger 1 2 3 4

   By fondupot, September 3, 2015
   • 52 replies
   • 33.6k views
   • 
   • SILVHOE408
   • March 12, 2020

9. C0300 code after longtube install

   By Crimson6.2L, March 12, 2020
   • 7 replies
   • 9.2k views
   • 
   • newdude
   • March 12, 2020

10. Transmission questions 2014.

    By Aboogie808, March 11, 2020
    • 4 replies
    • 795 views
    • 
    • flyingfool
    • March 12, 2020

11. Transmission fitment question

    By Jesus Enrique Villanueva, March 11, 2020   

    • transmissin
    • 2014-18
    • 1 reply
    • 650 views
    • 
    • CamGTP
    • March 11, 2020

12. Rear differential size?

    By ShortyMatt, March 10, 2020
    • 4 replies
    • 12.3k views
    • 
    • SierraHD17
    • March 11, 2020

13. Transmission fluid change 1 2

    By TheSilverBulletRado, March 7, 2020
    • 20 replies
    • 6.6k views
    • 
    • BlaineBug
    • March 11, 2020

14. 6.2L Intake/Exhaust Recommendations

    By Dis3as3d, March 6, 2020
    • 4 replies
    • 1.1k views
    • 
    • Charles P.
    • March 11, 2020

15. 2015 tranny and case fluid change mileage 1 2

    By Jeff5347, March 10, 2020
    • 16 replies
    • 1.7k views
    • 
    • Black02Silverado
    • March 10, 2020

16. Oil Pressure Sensor

    By mdk, March 3, 2019   

    • oil pressure sensor
    • 2014 sierra
    • 4 replies
    • 13.7k views
    • 
    • Kulterkampf
    • March 9, 2020

17. 2015 silverado 6l80 transmission no forward or reverse

    By connerhistory, June 27, 2019   

    • 6l80
    • myc
    • (and 1 more)

      Tagged with:

      • 6l80
      • myc
      • no forward or reverse
    • 12 replies
    • 49.6k views
    • 
    • flyingfool
    • March 9, 2020

18. 14 sierra 4.3l rpm bouncing

    By Michael Wheeler, March 4, 2020
    • 3 replies
    • 605 views
    • 
    • Grumpy Bear
    • March 8, 2020

19. What is this called?

    By Jmott, March 8, 2020
    • 1 reply
    • 694 views
    • 
    • flyingfool
    • March 8, 2020

20. L83 All motor build 1 2 3

    By Kuuups, February 27, 2020
    • 30 replies
    • 55.8k views
    • 
    • flyingfool
    • March 7, 2020

21. Bouncy Front End Suspension

    By Slvijoe, February 28, 2020
    • 9 replies
    • 886 views
    • 
    • gmcdawg
    • March 6, 2020

22. 6.2L Throttle Body Upgrade 1 2 3

    By DenaliX14, January 6, 2019   

    • l86
    • throttle body
    • (and 4 more)

      Tagged with:

      • l86
      • throttle body
      • sierra
      • denali
      • intake
      • upgrade
    • 42 replies
    • 57.6k views
    • 
    • flyingfool
    • March 6, 2020

23. 2015 5.3L Bent Pushrod 1 2

    By Mathew Kirsch, February 25, 2020
    • 21 replies
    • 45.8k views
    • 
    • Snowcamo
    • March 5, 2020

24. Sugglish transmission shifts

    By Jim Foreman, February 23, 2020
    • 14 replies
    • 1.5k views
    • 
    • flyingfool
    • March 3, 2020

25. How To: Trans Relearn

    By flyingfool, February 13, 2020
    • 2 replies
    • 1.1k views
    • 
    • huntwyo
    • March 3, 2020