My old heater fan blower motor froze up the other day after a week of making some rather annoying squeaky and general rough noises. I took the motor off of my parts truck and dropped some oil down the axle shaft and lined the top of the fan blade with some white synthetic grease before installing it back in. My problem is now that it makes a squeaking noise for the first minute or so when it is turned on and usually goes away after awhile of running. Even after the motor has been on for awhile and I flip it off then back on, it often squeeks again. It doesn't seem as though the noise is coming from the where the fan nearly touches the case but rather from inside the motor itself, I may be wrong of course. Does anyone have any tips on how to fix this problems suchs as how to oil the motor properly or is this just a sign that this motor is planning to die as well? Thanks for all your input.