2004 GMC Envoy Q&A
2004 GMC Envoy Question: service engine soon light came on.
they will adv you on codes then post so we can adv.do not buy anything from them yet - globalhelper
I agree dont start throwng money at this problem, Hopefully a code has been set, so do a scan, also how is your preventive maintence been on this vehicle, are you doing your scheduled services in a timely manner? Let us know - enhance yourself
I took it to 2 GMC dealerships and they stated no codes came on the computer.
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