Question about 2001 Pontiac Grand Am SE

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I have a 2001 Grand Am 6 cyl. and it has been overheating which if you turned on the heater it would start to drop temperature. now if you turn the heater on when it overheats, it blows cold air. we have replaced the head gaskets on this about three years ago also. what else could this be?

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If all the fans are working then it maybe a crack head did you get them check when you put new gaskets on. could be a hairline crack. that cant be seen unless it magnafluxed.

Posted on Aug 27, 2010

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  • andrea_yeage Aug 29, 2010

    yes we had the heads checked when the gaskets were replaced. Somehow it seems to be draining the antifreeze dry within days but no leaks are detected so I am guessing that we are back to square one with this car again. thanks for the info!

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