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2003 Ford Explorer Fan Blower Motor

The HVAC fan in my '03 Explorer only works on 4. There is no discernable difference on 1-3. Any suggestions?

Thanks.

Jeff

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Jeff, If I understand you correctly you say your blower motor only works on high? check your blower motor resistor, located next to blower motor. The resistor makes the other speeds availiable, high bypasses the resistor, let me know if that fixes you up

Posted on May 27, 2009

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From autozone.com
2003-04 Vehicles

CAUTION On vehicles equipped with airbags, disable the airbag system before attempting any steering wheel, steering column, or instrument panel component diagnosis or service. Disconnect and isolate the battery negative (ground) cable, then wait two minutes for the airbag system capacitor to discharge before performing further diagnosis or service. This is the only sure way to disable the airbag system. Failure to take the proper precautions could result in an accidental airbag deployment, possible personal injury or death.

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  5. b8492c4.gif

Fig. View of the resistor block screws (1), blower motor resistor (2), resistor block wire connector (3), blower motor screw (4), blower motor (5), blower motor wire connector (6), blower motor screw (7), HVAC housing (8), wire harness retainer (9), blower motor screw (10)

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