Question about 2006 Chevrolet Cobalt

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When I was changing the spark plugs in a 2006 Chevy Cobalt, I was putting in the no. 1 spark plug and antifreeeze started to come out. It appeared to be coming out at the top of the spark plug hole approx. 1" down. What could be the problem? The exhault pipe seems to have a white smoke or steam coming out of it. Can anyone help?

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You have a blown head gasket or cracked head. Have the head pulled and look for gasket breaks. If no gasket breaks, have the head tested for cracks. If good, also check for surface warping and reinstall with new gasket. let us know if you need more help.

Posted on Sep 13, 2010


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Haveing trouble starting sometimes

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2005 chevy cobalt 2.2 is running rough (putting)

Number three cylinder is miss fire,it does not mean it is the coil,although it could be,remove the coil,and boot,and spark plug,inspect them to see if the plug,or boot look bad,replace the spark plug,and if the boot is burned or distorted,replace it,a fuel injector can cause a miss fire also,but change the spark plug and see if this solves the problem,if not replace the coil,if it is a dead miss,then the coil might be bad,as for the water in the fuel ,the cap is missing,,and 5 dollars worth of HEET will not hurt,also,fuel from the fuel station,can have water in it.It happens a lot.

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