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Join Date: Jul 2007
Location: Western New York
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the blower motor stopped workin on one of the F150's at work. i started easy, replaced the resistor. still no fan. took the dash apart and found the back of the fan speed switch was melted. ford actually sold a replacement switch insert instead of having to replace the whole HVAC unit, which is handy. when that still didnt fix it i knew it was the motor. ordered a new one and pulled the old one out. the housing was rusty as shit and you could barely spin the shaft with a set of pliers on it. when an electric motor starts to drag or tries to freeze up, it draws more amps to try and overcome the obstruction/resistance. more amps = more power draw = more heat. sooner or later, the wiring/connectors wont be able to support the load being put on the system by the failing motor and will start melting shit.
ive never had my dak's fan motor out, but the F150 at work took about 45 mins to remove from the truck, remove the motor from the plastic housing, replace with new motor, and reinstall in the truck. the motor was a "universal" kind of wiring design, so with the wire colors of the motor (black/orange) matched to the truck (black/red) the fan ran backwards. just took the wiring back out of the connector and reversed them, works fine.
Hi, my name is Brad, and I have an addiction to Dakotas.