Drivers window The window on the drivers door comes down about a half inch and stops. You can still hear the motor running but the window won't move. I can get it to go back up. Before I pull the door panel, and find out what I already think is the problem... Does the window motor have a worm drive gear that may be stripped, causing this problem? Thanks AL

Window regulator probably broken. I've seen the cables break loose and keep the window from going up or down. You should take the door panel off and inspect.

1st-check the fuse
2nd-try operating window from drivers door and rear right door to confirm its maybe not the window switch thats faulty
3rd-when pressing the switch if you can hear the motor running then the mech is broken
4th- if you can slide the window up and down almost half way by hand replace the motor and mech
5th-after removing the door panel unplug the motor and using a volt meter confirm that power is present when activating the switch

It might be a coincidence with the sun roof, but all makes and models of cars have window and door lock problems with age. Two things happen as a car ages. In most cases, the drivers door opens and closes more often than the rest of the doors, also your more likely to leave the drivers window open and it rains in on the controls. The majority of the time, it's the wiring at the door hedge that bends back and forth & breaks when you get in and out of your vehicle. Everyone's situation is different depending on use/mileage.
Example: Delivery driver, miles 50k window/door lock problem.
Highway daily driver 150k miles with no problems.

You can sometime check this your self. Turn on your ignition where the windows should work. "engine does not have to start" Sit in the drivers seat, hold down the window up/down button while moving the door in question to open & close. If the window tries to move at any time, the wires are wore in half. This does not always work, but I have had great luck trouble shooting electrical door problems using this method. If you have doors with no wires, clean the contact points. Hatchbacks & minivans use this system. Hope this helps.

You can remove the door handles and power window switches and the screws in the door pad and push up on the pad and it will come out of the track and then you can see the motor and replace the part yourself. Hope this helps.

I had the same thing with my driver side window. I took the door panel off and did not see any physical damge. But if I ran my hand along the regulator track, I would feel the cable had started to fray and come apart. The clicking was the cable within the spool that winds up as you use the window rubbing against the plastic. My van is a 2000 and I was able to find a .pdf of the Dealer repair manual online, only one page talks about the regulators and shows for a manual setup. But it made the mounting screw locations easier to find. Go to you-tube and type in your car make and year with something like, "how to replace a window regulator". I was lucky enough to find one for my van. In my case, the space you are working with is extremely tight, but I was able to get it all back together and it works great. I just fixed it yesterday, BTW, just wanted to pass on the good fortune.

Damage
New Regulators and Motor
Space to work with it tight and motor with cables mount to exterior.

try holding switch in dup position and slamming door if this works your motor is sticking if not remove door panel and jump motor if it works check lock switch on drivers switch and all windows from drivers switch and individual doors if all other doors work with both switches and motor operates your passenger switch is more than likely bad if you hear the motor work with switches but window does not move the regulater is bad

I have a similar problem with the same window. The window doesn't stop moving but it tilts forward until it won't close properly leaving a 1 inch gap between the top left corner of the window and the door frame from the perspective of sitting in the drivers seat. I had the motor and regulator replaced but to no avail.
I took off the door panel, everything looked fine. Took off all the weather strips and the driver side mirror. Behind the mirror there is the top portion of the metal guide the edge of the window rides up and down. it was partially cracked and bulged out beneath the crack. I gently pounded it back in and cleaned out the guides on both sides with window cleaner and WD-40. The issue will not be completely fixed until I replace the metal guide but it runs much smoother now.

Most common problem is a broken wire between body and door. Pull the rubber boot back and see, easier to find if you know what colour the wire is that is not working.

its most likely the switch on the drivers door.. to checj it remove the door panel and connect a test light to both of the wires that are in the motor plug then operate the switch in both directions if the light turns on in both directions then its the motor..

is this on BOTH windows?? it is odd they both failed at the same time.
If you here the motor running there is something inside the door has let go or falling off. the door will have to be taken apart to be fixed.
this is what's inside YOUR door. (passanger side, drivers side is just a mirror image)
1. there could be a problem between the motor gear and the moon gear. or 2 (most likely) the regulator arm has come off the window track or the window track has come off the glass.
hope this helps.