How to Replace Power Window Motor 99-04 Oldsmobile Alero
Difficulty: Intermediate · About 120 min · Oldsmobile Alero
Replace a power-window motor on a 1999–2004 Oldsmobile Alero by disconnecting the battery, removing the door panel and water shield, and checking window travel before restoring the trim.
Tools you will need
- Socket Extensions
- Flat Blade Screwdriver
- Phillips Head Screwdriver
- Putty Knife
- 8mm Wrench
- 10mm Socket
- Door Panel Removal Tool
- Ratchet
- Painter's Tape
Parts and supplies
- Power-window motor
Steps
- Disconnect the battery and remove the door panel
Switch the ignition off and disconnect the negative battery cable. Release the switch and handle trim, remove the panel screws, free the panel clips with a trim tool, unplug the door wiring, and lift the panel away.
- Expose the motor and secure the glass
Peel back the water shield carefully and unplug the window motor. Support the glass in its raised position with painter's tape before removing the motor fasteners.
- Remove and replace the window motor
Remove the motor mounting bolts and lift the motor from the door. Position the replacement motor, start its fasteners by hand, tighten them evenly, and reconnect the motor lead.
- Test the glass and restore the door
Reconnect the battery and switch temporarily, remove the glass support only when the regulator is secure, and cycle the window to verify smooth travel. Reseal the water shield, reconnect all door harnesses, and reinstall the panel and trim.
Check your vehicle’s repair manual for exact specifications and fit.