Question about 2006 Chevrolet Cobalt

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Check Engine Light

I have a 2006 Cobal Sedan. The check engine light is on and it says in the manual that this is due to an emissions problem. The Diagnostics thing my dad hooked up (OCB?) wouldn't link up. I've checked my gas cap and i put gas in my car and there's no water in my tank.. I'm not sure why this light is on.. Help?

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  • maye72000 Jul 11, 2008

    about every morning this week before leaving for work, I have been pulling over to the side of the road because the dashboard information center states to check gas cap. Every time I check gas cap (which is on and secured) I unscrew it and re-screw it back on to make sure that it is on and that I hear the clicking sound. Well today after I came back from the store and was on my way to work, the check engine light came on and is still on? What could be the issue? would I need to see about investing into getting a new gas cap or would a fuel injection cleaning (by chance help out my problem (seeing how I have not had a fuel injection cleaning since I've purchased the car back in January 2008). Any assistance and guidance will be appreciated.

  • markellogs Aug 02, 2008

    i have same problem with engine light.dealer says water in gas,but after three tanks of gas and two bottles of dry gas light is still on .my son put scanner on engine it said it was burning to lean.changed air filter and light is still on.

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There are many many problems that can cause your check engine lite to come on. Some of those problems will not let the lite go out until it is cleared with a handheld computer. (Even if the condition that caused the lite to come in, has cleared) But as far as the 2 comments go, a fuel injector cleaning would be a good invsement here. It is a good possibility that this is your problem and if it isn't, it is still very good for your engine performance and fuel consumption so wouldn't be a bad investment. If your vehicle is still under warrenty I would also talk to dealer about reading computer. Even if the check engine lite is not on, some codes will store in the computer that it came in and cleared so the dealer would be able to tell you what code came in to cause the lite to be on. It would at least be a starting point to look at for troubleshooting.

Posted on Aug 16, 2008

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