Why does my power window stop 3 times?

[hefftone]

1990 Regular Cab with factory power windows.

Going all the way down or all the way up, my driver side window will stop at three spots where I have to help it past there. It operates pretty smoothly in between those spots.....when It gets stuck it makes a loud stutter vibration sound.

I have the door panel off, but can't see much in there. Don't want to start taking stuff apart now that winter is coming, unless I know what I'm getting into.

Would love to get this fixxed, please help me!

 

[JollyGreen]

Sounds to me like the motor is going out.

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[bow61509]

Not sure but my 90 model did the exact same thing but never figured mine out either. It sounded to me like the gears on the actuator might have been worn off in those spots

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[hefftone]

Motor sounds to be working fine....it does sound like a stripped gear tooth or something, but I'm not familiar with the construction of the components.

It also makes the sound when the window is all the way up/down. Which I don't know if that is normal for the motor will keep turning with the window fully up/down...sounds kinda stupid.

 

[bow61509]

Mine did that as well lol. I never fixed mine just dealt with it, because I hate tearing into the doors

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[sewlow]

I hate tearing into the doors

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X10,000,000!!!

 

[hefftone]

X10,000,000!!!

Why is that?

 

[bow61509]

Why is that?

Because going in behind the inner door panel is a pain and a very poor design from the good ol engineers at GM

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[kmcbride74]

Motor sounds to be working fine....it does sound like a stripped gear tooth or something, but I'm not familiar with the construction of the components.

It also makes the sound when the window is all the way up/down. Which I don't know if that is normal for the motor will keep turning with the window fully up/down...sounds kinda stupid.

Did you ever figure this out? Mine is doing this exact same thing. I assume there are broken/worn tooth on the gear that the actuator is on?

 

[hefftone]

I decided not to devle into pandora's box....at the warning of others.