Question about 2003 Mercury Grand Marquis

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No AC, heat, or vent

I got into my car today and tried to turn the air conditioning on but nothing happened. Blower motor not kicking on. I checked fuses and everything seems OK. It worked just fine yesterday. Any suggestions?

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Its sounds like the Blower speed controller, its located under the hood on the heater case. reach down a wiggle the connector, its under the heater hoses and attached to the case. If it starts the blower fan working get it replaced as it has a bad board.

Posted on Aug 09, 2009

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It sounds to me that you might have a small short,and (or) in line fuse,(you can't see), might have blown, go to your nearest advance,kelly,or auto zone (it's Free), and have them run a Code test on it, and let me know what code errors it throws, god bless

Posted on Jul 03, 2009

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