Thanks to all for the help with the windows.
I removed the windows and motors. When I separated one motor for the gear
assembly, water came out.
I cleaned the motors as best I could using a solvent contact cleaner and greased
the inside of the gear/cable assembly.
Then reassembled them.
They have been working for a few weeks.
Rear electric windows used to work sporadically. Now they don't open or close
I have the door panel off and checked for power. They are getting power - so it
is not the fuse or the switch.
Is there something inside the motor that can be fixed like brushes? Worth
taking it apart?
Removing the motor looks straightforward - three bolts. Anything special about
removing and replacement that I should know?