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2007 Chevrolet Cobalt Question: My check engine light has been on going on two years now.



Lrw2013, New Caney, TX, March 13, 2014, 11:35

It codes as a cylinder 3 mis-fire. I had all of the spark plugs changed and the check engine light is still on. It took 3 inspections before it finally passed. When the gas tank is full It feels like it runs better and I don't feel it misfiring. Has anyone had any experience with this?

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