Engines & Drivetrain

2,739 topics in this forum

1. 84,000 miles and needs a new transmission 1 2 3 4

   By sage55, October 13, 2021
   • 48 replies
   • 8.4k views
   • 
   • Grumpy Bear
   • December 16, 2021

2. P0307 and more.

   By Aerovette, October 17, 2021
   • 2 replies
   • 2.4k views
   • 
   • TJay74
   • December 16, 2021

3. High Pressure Fuel Pump

   By nwolfe20, October 30, 2021
   • 5 replies
   • 16.7k views
   • 
   • TJay74
   • December 16, 2021

4. 80k 4.3L Ecotec is blown. $9k Repair bill. Seeking options and advice

   By fireberd350, December 13, 2021
   • 5 replies
   • 1.3k views
   • 
   • M1ck3y
   • December 15, 2021

5. 6L80E thermostat delete sure-cool cooler kit 1 2 3 4

   By Jdezee, December 1, 2019
   • 55 replies
   • 81.9k views
   • 
   • Grumpy Bear
   • December 15, 2021

6. 2018 Sierra 6.2 tough starting

   By Boyd Proctor, December 5, 2021
   • 5 replies
   • 1k views
   • 
   • Chris Manchur
   • December 14, 2021

7. 2017 GMC 6.2 Whipple Supercharged Map sensor Problem

   By Tanner Smith, January 31, 2021
   • 10 replies
   • 9.1k views
   • 
   • pokismoki
   • December 11, 2021

8. Hub Assembly Replacement Torque Specifications?

   By BlaineBug, November 19, 2021
   • 7 replies
   • 96k views
   • 
   • BlaineBug
   • December 8, 2021

9. Cord hanging by abs pump

   By Castisos, November 23, 2021
   • 5 replies
   • 954 views
   • 
   • M1ck3y
   • November 25, 2021

10. Skid plate

    By Jared W, November 18, 2021
    • 2 replies
    • 900 views
    • 
    • M1ck3y
    • November 19, 2021

11. Extreme negative LTFT's.

    By Bedwards923, November 10, 2021
    • 8 replies
    • 14.5k views
    • 
    • M1ck3y
    • November 15, 2021

12. 3.08 to 3.42 regear, tuning question

    By 14burrito, November 12, 2021
    • 8 replies
    • 3.2k views
    • 
    • 14burrito
    • November 15, 2021

13. 2015 chevy 1500 5.3l P0307 code`

    By cutlit9, November 14, 2021
    • 2 replies
    • 3.2k views
    • 
    • Snowcamo
    • November 14, 2021

14. Thermostat Recommendations

    By Blue65, November 3, 2021
    • 10 replies
    • 30.5k views
    • 
    • Blue65
    • November 11, 2021

15. L86 MSD atomic Intake Swap Parts

    By GMCSLIM, January 28, 2018
    • 5 replies
    • 9.1k views
    • 
    • truckguy82
    • November 11, 2021

16. Transmission Fluid Flush or Change? 1 2

    By TheSJHL, November 9, 2021
    • 22 replies
    • 3.6k views
    • 
    • MikeBMW
    • November 11, 2021

17. CV Axle Replacement

    By jrabenaldt, November 8, 2021
    • 0 replies
    • 795 views
    • 
    • jrabenaldt
    • November 8, 2021

18. Exhaust Valve Noise - 2015 5.3L 4x4

    By ember1205, November 4, 2021
    • 6 replies
    • 1.3k views
    • 
    • M1ck3y
    • November 7, 2021

19. Misfire at Idle on #3 and #5 P0300

    By GILIAS, March 2, 2021
    • 8 replies
    • 11.7k views
    • 
    • Skeeterhawk01
    • November 4, 2021

20. Another 8spd question. How to handle dealer? 2017 Sierra, 6.2 8spd

    By MattyB4x4, November 3, 2021
    • 4 replies
    • 1.3k views
    • 
    • MattyB4x4
    • November 3, 2021

21. 14+ Silverado Supercharged 5.3L looking to add an intercooler

    By rdy2rce, September 30, 2021
    • 3 replies
    • 2.9k views
    • 
    • coilovergto
    • October 31, 2021

22. Fuel Tank Filler Neck Bolts

    By Tyler Breazeale, September 22, 2021
    • 3 replies
    • 16.8k views
    • 
    • Ravenkeeper
    • October 27, 2021

23. 2014 GMC Sierra 4x4 5.3 final drive question

    By jmansfield04, October 18, 2021
    • 6 replies
    • 985 views
    • 
    • truckguy82
    • October 27, 2021

24. Cam Replacement Options? Misfire 1 2

    By GTXgp, October 6, 2021
    • 17 replies
    • 4.2k views
    • 
    • JONBLARC7
    • October 26, 2021

25. Dyno Numbers

    By Justheman80, October 23, 2021
    • 2 replies
    • 1k views
    • 
    • lucas287
    • October 25, 2021