Wires were warm, smoke came from under the dash, we tested the blower with an 18 volt battery and it whirled around good style. Put it back in car as thought it was working, got a new resistor and changed it over, the motor worked as I said but had to un plug again because of the smoke. fixed the old resistor and replaced that but same happened (smoke) should I get a new motor blower and resistor and try that or do you think it will smoke again. Don't know anything about wiring at all.