My drivers side fan is out on my radiator. I can spin it w/ my finger and it starts up for a few seconds, but then dies. Can I replace just the motor? Or do I have to replace the entire assembly? How difficult and how much. Thanx

Sounds like your coil in your motor is shot. I believe its possible to replace just the motor, but it might be not that much more to get the entire assembley. But yeah it is definatly the motor if you have checked your connection going to the fan.