Quote:
Originally Posted by jhow66
Ok then unhook the fan switch. If blower does not run then your switch has to be the problem. Most likely you will find that the switch has been getting hot (melted plastic from loose connection). This causes the parts inside the switch to fail (springs, tabs, etc. loose their tension from the heat). The other two speeds on the switch are controled by a resistor on the back side of heater box. Do they work?
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You are correct about the melted plastic. The old harness was melted at the control connection. As far as the other 2 speeds, I can't tell because it only blows on high.