04 GMC Envoy misfire with no check engine light
I have a 2004 GMC Envoy. I recently replaced the spark plugs with AC Delco iridium spark plugs. I can feel a misfire with engine at idle and while driving, but there is no check engine light. How do I determine what is causing the misfire with no check engine light
have the computer scanned anyway. sometimes a code is stored. also, it is possible your light itself doesn't work. happens.
It can be a million things. Check fuel pressure and spark. If it was a misfire you would would have P0300 codes
Search GMC Envoy Questions
Are you a UK consumer? CarGurus now has a discussion forum in the UK.
GMC Envoy Experts