Having problems with your GMC Sonoma ?
I have a 1997 gmc sonoma, 2.2L, manual trans. When I try to start it, it usually cranks and locks up like timing is off. It backfires sometimes. Then if it starts, it misses and backfires sometimes. Then it will straighten out and run great. Other times it start great and runs great. Usually backfires when weather is wet, rainy.
I would guess fuel pump or filter, Tim
Repair Help & Product Troubleshooting for GMC Sonoma
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.