2007 Chevy Z71
June 15th, 2010, 10:45 AM
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2007 Chevy Z71
couple days ago an alert flashed up to check the gas cap. I stopped and made sure it was tight. Didn't see that message appear any more but about 2 days later the check engine light came on and has not gone off. I rechecked the gas cap as instructed by the owners manuel and even done a gas treatment in a new full tank of gas but it still is on. Any suggestions on what it may be?
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