Having problems with your 2008 GMC Sierra 2500HD 2WD ?
My 4wheel drive made a poping noise when i went to disengage it and immediately said service 4wheel drive is there a fuse or something (it will not work now)
Try disconect the batt 4 60 seconds then put it back on that should reset the computer it may stay out
Repair Help & Product Troubleshooting for 2008 GMC Sierra 2500HD 2WD
Tips for a great answer:- Provide details, support with references or personal experience .
- If you need clarification, ask it in the comment box .
- It's 100% free, no registration required.