Question about 2001 Mercury Grand Marquis

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Heater and ac not working, nothing blows out - 2001 Mercury Grand Marquis

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Sounds like the fuse to the blower motor (squirrel cage fan). Check the owner's manual for the location of the FAN fuse.

Posted on Feb 28, 2009

  • Rob
    Rob Feb 28, 2009

    If not the fan fuse, there may be a relay in the blower motor circuit that needs replacement.



    If no relay, get a volt-ohm meter and see if you have ~+12V DC at the connector nearest the fan itself (ignition in the 'run' position, "floor" position, and fan control on "high"). If you got voltage nearest the fan, your blower motor (fan) is kaput.

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