"Darryl" <firstname.lastname@example.org> wrote in message
> The rear door window will go down fine. When you try to put it up the
> motor is running but will not move window. There is a cable that runs
> from the motor to the top of the regulator, then down and to the bottom of
> the motor. When you try to run the window up the top of the the cable
> pulsates up and down.
This is a common problem with Explorers, at least of that vintage.
Go to the link below and you will find a lot of information that will
discuss the window motor failure and lots of other maintenance procedures on
91, 92, etc.