The window regulator is the likely culprit.

There is a vertical bar in the door that has a movable carrier on it. The
windo hass sits on it. The carrier goes up and down, opening and closing
the window. The carrier is pulled up or down by a cable. There is a plastic
capstan at each end end of that vertical bar that guides the cable. The
rivet that holds the bottom capstan has more than likely come loose,
allowing so much slack in the cable that the motor can run, but not move
the carrier. The cable could also be fouled in the gear and pully
arrangement driven by the motor. In any case you must pull the regulator
assembly to fix it.  The R&R is described in the Bentley.

If the motor is running, the simplist way to repair it is to get a new
regulator from Van Cafe. It comes without the  motor. Just swap the motor
over to the new regulator.

That regulator is a real PITA to repair  if it's broken. Better a new one.

I'm currently dealing with the issue on my  '91 Carat - Driver's side.

John

On Oct 22, 2016 02:03, "Gordon Mah" <gordonmahung@gmail.com> wrote:

> Sorry guys, urgent problem here.  1989 Vanagon with passenger side
> electric window stuck fully open.  I hear the motor running (not the fuse)
> but it won't go up or down.  Any ideas?  It was working smoothly until last
> night.
>
> -g
>