Right side window problem...

[jpflip]

When I operate the outside or inside door handle the glass should come down about 13mm (.5 inch) according to the repair manual. On the right side it move only about 2mm. Just barely enough to clear the seal when the door is closing. I realized the glass can be moved by hand about an inch up and down. It is loose in the lower attachment. On the left side it is completely tight. So I dismantle the door trimming to found out, the only thing that can go wrong is the window electric motor. Is there anything inside that motor, a brake of some kind, that can be adjusted or replaced. Thanks for your help, J.P.

[RFM]

A worn out window motor is rather unusual, the window regulator mechanism is mostly the culprit. Take a good look on that.

[jpflip]

Thanks RFM, but when I am forcing the glass up and down the mechanism of the regulator move freely. Both pulleys and cables follow the movement of the glass. There is nothing loose in the mechanism in relation with the glass itself and the regulator. May be there is a device into the attachment part of the electric motor on the regulator assembly that provide friction. I am really lost on this one. There has to be a brake of some kind or an electric clutch that engage and disengage when window is operating???? Or I got serious damaged gears inside the motor... Any experience in this part of the mechanism?