2002 Chevy avalanche
7 Answers
the light will only flash when there's a misfire,keep at it.
Yea but where the misfire I took it to a shop and it said that it was one fuel injector i change that still same thing
pull the plugs again and make sure you didn't accidentally crack one,not the first time that happened to anyone.
well then its scanner time, to see which cylinder is giving you the issue.