HVAC Blower motor problems
Hope this is the right place to ask this question. I have a 92 Ranger, 4 cyl, stick shift. This past winter, I started my truckturned on the heater blower and SMOKE AND SPARKS came out of the defroster vent. Hmmmm. I shut the motor off, opened the window to air the cab out and started up again. Heater works fine (and now so does the AC) but, I have only one speed on the blower; full and off, My question: What happined and how to fix it. Thanks for any help.