Drivers side window…………

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Jan 3, 2026 | 04:29 PM

Mr.Lars

Thread Starter

Cross-Country

Joined: Aug 2025

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Drivers side window…………

On my 1991 F-350 will not go up, no sound from motor, 12v power all the way to the motor, but no action, switch is good.
I have the inside panel, and sheathing removed, exposing all the access holes, but I can’t see how the motor/gearbox can be removed? Everything worked up fine, until today. TIA.

Jan 3, 2026 | 04:38 PM

90project5.0

Fleet Mechanic

Joined: Oct 2025

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Most likely riveted on, drill out the rivets, bolt new one on.

Jan 3, 2026 | 05:14 PM

My4Fordtrucks

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Joined: Jun 2015

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Alternate opinion:

Most likely screwed on, drill out the dimples in the door shell to gain access to the screws. Remove the motor and replace the gears inside the motor or bolt new one on.

Jan 3, 2026 | 07:23 PM

1Butcher

Cargo Master

Joined: Mar 2007

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Quote:

Originally Posted by Mr.Lars

12v power all the way to the motor, but no action, switch is good.

The motor needs power and ground. If there are both, then the motor is faulty. The window could be seized also, which would prevent it from moving. An ohm test would confirm if the motor has excessive resistance.