GMC Troubleshooting Questions? Ask a Mechanic for Answers
Hi John. May I have the actual "p-code" associated with this description?
Ok, "fuel delivery code" is very general. It would be impossible for any Tech to correctly diagnose this given just this little bit of info. It'd help us a ton if we had those actual p-codes. You can have these p-codes read FREE (except in California) at any local "big chain" part store (ie. AutoZone, PepBoys, Advanced, etc). Any chance I can get you to take a quick ride and get us those codes?
No need to pay for a code read. AutoZone will do it for Free (except in CA). If you can get those codes, I'm positive I can help you resolve the issue.