Rebuilt all the lock actuators and window motors/regulators. Cost = ZERO! on the 90 Wagon. 3 Windows would move slowly, driver rear nothing at all, power locks were "trying" but would not move full distance.
I removed the motor/regulators (cable drive) on each door. Used my bench grinder with a soft brass wire wheel to clean out all the old grease from the cable drives, soaked in parts cleaner, then packed them with new White Lithium grease. I removed the motors, pulled the cover that houses the brushes, then resurfaced the commutator with 1000 grit sandpaper (NOTHING ROUGHER). Re-installed the cap and brushes after cleaning out the inside of the motor with lubricated electrical parts cleaner such as DeOxit or Orielly electrical parts cleaner + some silicon spray. Re-installed windows are fast as new. Also clean/silicon spray your channels/tracks.
The lock actuators on the 90 are motorized gear driven units. Remove them from the door, remove the end cap where the brushes are from the motor, clean the same way as the above. For these i took the entire motor shaft/comm out and put in into the end of my small 12v dewalt drill motor then poked the end shaft through a piece of 1000 grit and used it to sand the comm smooth and clean. Lubricate clean/re-install and BAM your locks will be as fast as AK-47 bump fire! So for zero bucks, i have fully working fast locks and motors on all my doors now :-) Beats the hell out of paying 65 for motors and 45 for actuators PER DOOR!
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