Trying to get our 1974 GMC Coach up and running. Got the LP system tested for leaks and safety issues, then tried to fire up our Suburban furnace. Things overall went okay, but it seems like the motor/blower is in need of help. The blower starts really slow, squeaks a bit, then eventually starts to blow air. On 120v it's okay once it gets going, but on 12v has trouble getting up to speed. Anyone have experience either rehabbing the motor or replacing them? I assume that I'll have to pull th