"Bad" PW Motor(s) for Fiero and many others is a symptom of other problems... Iffy electrics, regulator or both will wreck the motor and if you don't fix them new motor have a short life too. Regulator is entire machine makes window to open/close. PW Switches isn't only thing causes Low Volts to the motor. See my Cave, Electric Motors
------------------ Dr. Ian Malcolm: Yeah, but your scientists were so preoccupied with whether or not they could, they didn't stop to think if they should. (Jurassic Park)