Squeaking ventilation motor

[fchapchuk at cae-usa.com]

I also have a squeaking ventilation motor. (' 92 100)
Mine seems to be a summer squeak.....only makes
noise after it gets cold form the air conditioner. 
I've attempted to lube it by pulling out the sensor 
mounted to the side of the unit (behind the firewall)
to gain access to the motor. Not sure if spraying stuff
down there actually does anything.

But yes, if you do go through the trouble of removing it,
just replace it.