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2006 V6 Mustang... Check engine light keeps coming on

1791 Views 3 Replies 3 Participants Last post by  chuckster1313
My service engine has been comingon and off for about the last 5 days. I took it into the shop and they initially said it was just an optic something or other that was common on my model and year (2000 v6). Also when i was idoling my enigne would make a "waving" sound getting higher and lower.. possibly a belt problem? I know very little when it comes to cars and would really appreciate some ideas/help. Thanks alot:headscratch:
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Your check engine light usually comes on in response to an imbalance in your fuel/air ratio in your exhaust. Usually. You might try running a can of injector cleaner through your gas tank in case you are running lean. How's your performance been? Have you noticed a drop in your average MPG? You can also take your car to an auto parts store and most of the time they can hook their computer to your car and tell you why the light is on for free (but only of the light is on when they hook it up)
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