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Q:

the truck keeps bucking and check engine light came on on 2003 Ford Ranger

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it started a few days ago. my truck keeps bucking so i tried putting lucas fuel injector cleaner in my gas tank and it still does it. i also changed the oil now my check engine light is on?
(2) Answers
Check engine light will help you pin point A problem, but not necessarily THE problem. It's the place to start, though. Sounds like either a misfire, or an air intake issue. Start with the basics - check codes, check fuel, check air, check spark...
sorry buddy lucas isnt going to help. if u bring to me ill put it on a scanner and diagnose it no charge. brett at arctic freeze auto repair