AC AND HEATER FAN NOT WORKING on 2005 Mercury Grand Marquis

DOES NOT WORK ON AC OR HEAT

by in Porterville, CA on June 30, 2011
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1 answer
ANSWER by , July 03, 2011
Most likely it is the blower resistor. I have a 2005 Grand Marquis, the resistor has went out twice. It is recommended not to run the fan on the lowest speed as the fan is used to cool the resistor.