Paint and Body Driver’s power window ?

Exrace89GT

Member
Mar 29, 2019
90
19
18
Lompoc, CA
My 1989 GT ex race car had a bunch of the wiring disconnected. The driver’s window was down and at that time I didn’t have any way to get it up. Well I figured out how to get power to the switch. I can get it to go up but it lacks going all the way up by about an inch. It will go all the way down. But lacks that inch at the top. What might be the problem? I tried pulling it up while pushing the switch. Still no go.
 
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Power Window tips & tricks

Motor removal & replacement

Remove the door mounted speaker & the upholstery panel to gain access to the motor. There are 3 screws (5/16" hex head, I think) that secure the motor in place. Remove them and the motor comes out without any problems. Once you remove all the screws from the motor, and it falls away from the gear teeth on the arm for the glass, the glass will move up and down. You may need a helper to hold the glass once the motor screws are out, since the gear on the motor holds the glass from sliding up or down

Motor interchange
The motor is the same for left side or right side, only the gearboxes are different. If you can't find the complete assembly for the side you want, you can get either side and use the old gearbox on the new motor.

The window motor gearbox has 3 plastic rollers that are a safety clutch to prevent possible injury if the window is rolled up while something or someone is hanging out the window. The plastic rollers will often disintegrate into chunks of plastic and the window will no longer roll up or down. The motor runs, but the window does not move or only move a little.

The Help! section of your local auto parts store will have the replacement plastic rollers.

rnb-74410.jpg


See NAPA Window Regulator Gear Plug

235297.jpg


Napa p/n Balkamp 6651524

Cost is 9.49$

AutoZone and other auto parts stores see Dorman 74410 / Window Lift Motor Gear Kit
Cost is $7.99

Power Window Wiring Diagrams

Diagrams courtesy of Tmoss & Stang&2birds

Fuse panel and circuit breaker layout
MustangFuseBox.gif


87-92 model cars power window wiring:

mustang87-92%20PowerWindowWiring.gif


93 model cars power window wiring:
mustang93PowerWindows.gif


See the following website for some help from Tmoss (diagram designer) & Stang&2Birds (website host) for help on 88-95 wiring Mustang FAQ - Wiring & Engine Info Everyone should bookmark
 

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Power Window tips & tricks

Motor removal & replacement

Remove the door mounted speaker & the upholstery panel to gain access to the motor. There are 3 screws (5/16" hex head, I think) that secure the motor in place. Remove them and the motor comes out without any problems. Once you remove all the screws from the motor, and it falls away from the gear teeth on the arm for the glass, the glass will move up and down. You may need a helper to hold the glass once the motor screws are out, since the gear on the motor holds the glass from sliding up or down

Motor interchange
The motor is the same for left side or right side, only the gearboxes are different. If you can't find the complete assembly for the side you want, you can get either side and use the old gearbox on the new motor.

The window motor gearbox has 3 plastic rollers that are a safety clutch to prevent possible injury if the window is rolled up while something or someone is hanging out the window. The plastic rollers will often disintegrate into chunks of plastic and the window will no longer roll up or down. The motor runs, but the window does not move or only move a little.

The Help! section of your local auto parts store will have the replacement plastic rollers.

rnb-74410.jpg
The 3 plastic rollers are referred to as torque pins. Their primary function is to serve as limit switches to inform the motor when to stop up or down. The motor may not run at all if they disintegrate into chunks of plastic. If you remove the motor & it spins, replace the torque pins.