2003 Mercury Grand Marquis Q&A
2003 Mercury Grand Marquis Question: My AC Heater blower motor does not work. I checked the motor and it is good.
Did you check the blower motor resistor and the switch itself? - csubak30
if automatic temp control, the blower controller is fault. can tap it to see if blower works. is located below heater hoses at firewall. - mrfordman