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.

 

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?

 

Bump-Same problem as of today...
I'm calling my friend who is a Pcar mechanic.

 

Please let me know what he thinks....

 

I recently replaced my regulators, my window was doing the same thing but it also had the grinding noise on the affected side. I noticed that the wire was unwound right next to where you pointed out on your diagram. look to see if this is the case and if so a regulator change should fix your problem.

 

Ok I will look at this...Thanks for the info.

 

100% you need to replace the regulator, we do tons of them. The cables just stretch out.