Final generation of the Pontiac Grand Am.

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Why is car overheating?

My car 2005 Pontiac Grand Am tends to overheat. I'm not sure the radiator fans are working. Is there a way to check them to see if they are operating?

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Dennis Brunner, the fan doesn't come on until approximately 210°. Check to make sure your fans come on. It should come on whenever the AC is on, or when the engine is hot. If it doesn't come on when you turn on the a/c, the fan relay is probably bad. Also check the the CLG Fan Max Fuse, located in the Underhood Fuse Center, it may open, causing the coolant fan to become inoperative. Hope this helps, good luck.

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How do I check the fan relay


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Dennis Brunner will be eternally grateful.
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