Electric window stops

Drew20

Drew20

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my drivers window sometimes gets stuck at the bottom. Easy enough to free it off once I've taken the door panel off , but keen to fix the cause rather than continue to treat the symptom.
With the panel off, and repeatedly running the window fully down I really can't see what is sticking. When it's stuck the sardine can makes a good effort to move things, but only goes about 1/4 turn of the motor spindle. If I manually turn the spindle even slightly it releases the jam and the motor is fine
I think I have two options, find what is causing it to jam, or adjust the fully open window stop position.

Can't see either the cause of the jam or the window stop at the mo.....

The window is well aligned, hence I'm not going for a suck it an' see approach; keen not to make things worse (call this wisdom gained through experience ;) )

Thanks
 
1. Take a look at rubber buffers - sometimes they are so smashed, that start rubbing & inhibit rotation.
2. Sometimes that big sprocket that move window lever is not perfectly aligned, and side play of 1-2mm cause it friction against frame (mainly in the final positions (full up or full down).
 
I just pulled the inner panel off to access a stuck window in my car a couple of days ago, and replaced the rubber bumper that stops the travel of the window on the way up. The large gear that moves the window frame on its track has a large bump on it that travels from stop to stop as the window moves up and down. Both stops are adjustable to allow you to set where the window stops in both the up and down position. The stops themselves are rubber bumpers on the end of threaded rods; the rods thread through the metal frame holding the motors, gears and window slides. You can move them in and out to adjust where the window stops, and a 10mm nut then keeps them in position.

My problem was that the stop for the up position travel was crushed, allowing the window to travel too far upwards. My original low torque motors could not start the window moving downward; I had to use one of the white window tools Stan sells to get it moving.

Your problem is probably similar, but on the opposite end of the travel. In your case, the top rubber bumper is allowing too much travel so that the window can go beyond the point where the torque of the motor can get it started again. You can adjust the bumper by loosening the 10mm nut holding it in place and turning it outward away from the metal window frame so that it contacts the bump on the gear sooner, stopping the window travel within the range where the motor can start it again. If the bumper is crushed, however, it may not function as it should and if it is mushroomed it may also come in contact with the gear and inhibit window movement.
 
Hey, does anyone have a source for the rubber window stoppers? (Not meaning to hijack, but Drew may also need them)
Thanks

I have also seen there rubber stoppers cause this kind of issue.
 
Good information. I spotted the bump stop for the window up position, but not down. Will look again. Agree it's probably wear or a slight adjustment issue

:)
 
You can also remove the regulator lever and move the window up and down in its track to see if it gets stuck in the down position on its own. Definitely check the condition of the stoppers and adjust accordingly.
 
Found the bump stop, adjusted it and all seems fine. I'm working in the garage and can't open the door fully, which is how I failed to spot it the first time
:oops:
 
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