Ask A GM Technician

16,048 topics in this forum

1. 2013 Sierra running at 12.5 volts

   By zedbear, July 1, 2013
   • 12 replies
   • 33.4k views
   • 
   • Jsdirt
   • March 12, 2015

2. Ask The GM Tech Forum Rules

   By Zane, January 21, 2006
   • 0 replies
   • 40k views
   • 
   • Zane
   • January 21, 2006

3. Weird drivability problem

   By CNH-320, May 27
   • 4 replies
   • 231 views
   • 
   • CNH-320
   • 14 hours ago

4. 2011 Silverado 1500 dragging brakes?

   By ryancz33, May 11
   • 6 replies
   • 279 views
   • 
   • KARNUT
   • Saturday at 12:19 PM

5. A/C Help Needed for '03 Suburban 1500

   By willkel04, June 1
   • 2 replies
   • 86 views
   • 
   • Jsdirt
   • June 2

6. Cameras not functioning. The red circle appears when I press the camera icon at the home screen.

   By Kevin1957, May 13
   • 1 reply
   • 190 views
   • 
   • GMCustomerService
   • May 28

7. P2002

   By Phantom 4D, May 24
   • 0 replies
   • 85 views
   • 
   • Phantom 4D
   • May 24

8. Theft Deterrent System turns on while driving; makes all gauges drop all the way.

   By dani8827373736, May 13
   • 2 replies
   • 177 views
   • 
   • davester
   • May 15

9. 2022 Suburban with 3.0 diesel, continued abnormal Transmission issues

   By EngineNoO9, May 12
   • 0 replies
   • 205 views
   • 
   • EngineNoO9
   • May 12

10. Correct front axle gear oil

    By MaverickZ71, May 12
    • 4 replies
    • 186 views
    • 
    • Black02Silverado
    • May 12

11. Multipro Tailgate bracket

    By MpR, May 9
    • 0 replies
    • 110 views
    • 
    • MpR
    • May 9

12. 2012 Yukon XL Denali possible BCM issue

    By Dkd71, May 1
    • 6 replies
    • 431 views
    • 
    • Jsdirt
    • May 7

13. CKP Active Counter Graph; Intermittant Loss of CKP Signal

    By Goldwing2000, April 21
    • 7 replies
    • 292 views
    • 
    • Goldwing2000
    • April 21

14. 2004 yukon xl 1500 rwd axel compatible replacements

    By MelloRello69, April 20   

    • Rear end swap
    • Axel swap
    • (and 1 more)

      Tagged with:

      • Rear end swap
      • Axel swap
      • Rear axel housing
    • 1 reply
    • 136 views
    • 
    • newdude
    • April 20

15. Which wires am I missing and what should I do

    By LeoLEO, April 15
    • 2 replies
    • 140 views
    • 
    • LeoLEO
    • April 15

16. 2016 Silverado - How Much PAG 46 Oil for Condenser Replacement

    By jsm10, March 30
    • 3 replies
    • 288 views
    • 
    • Jsdirt
    • March 31

17. Possible bcm issue on 2002 gmc yukon denaliXL 1500

    By nickardo, March 25
    • 4 replies
    • 277 views
    • 
    • asilverblazer
    • March 26

18. 2023 GMC 3500HD PRO 84488395 Trailer Brake Control Switch Assembly

    By richard.m.true, March 22
    • 1 reply
    • 150 views
    • 
    • davester
    • March 23

19. 2008 Sierra turn signal issue HELP!

    By JGW, March 28, 2020   

    • turn signnal
    • short
    • 7 replies
    • 11.5k views
    • 
    • Michael Jones 79364
    • March 13

20. Side view mirrors have a mind of their own

    By Yoda3, March 6
    • 0 replies
    • 148 views
    • 
    • Yoda3
    • March 6

21. 2019 Silverado 1500 5.3L Anyone know what this sound is?

    By dlenk5698, February 16
    • 5 replies
    • 310 views
    • 
    • GMCustomerService
    • March 5

22. Airbag light on

    By airbag light, February 13
    • 3 replies
    • 221 views
    • 
    • GMCustomerService
    • March 5

23. 2005 Silverado 5.3 fans not coming on when they are supposed to

    By Austinbk1, March 3
    • 0 replies
    • 158 views
    • 
    • Austinbk1
    • March 3

24. 2025 Tahoe UVM Questions about wiring and setup.

    By toastpirate, February 27
    • 0 replies
    • 167 views
    • 
    • toastpirate
    • February 27

25. Programming a new key fob

    By drewand11, February 19
    • 10 replies
    • 827 views
    • 
    • newdude
    • February 21