How to Replace Rear Power Window Motor 94-99 Cadillac Deville
Difficulty: Intermediate · About 90 min · Cadillac Deville
Replace a rear power-window motor on a 1994–1999 Cadillac DeVille by removing the rear door panel, preserving the water shield, and checking the window and lock wiring before reassembly.
Tools you will need
- Flat Blade Screwdriver
- Phillips Head Screwdriver
- 8mm Wrench
- 10mm Socket
- Ratchet
Parts and supplies
- Rear power-window motor
Steps
- Disconnect power and remove the door panel
Disconnect the negative battery cable before working with the door wiring. Release the switch panel and courtesy light, unplug their connectors, remove the handle trim screws, and lift the door panel away from its clips.
- Expose and remove the window motor
Peel back only the upper corner of the water shield so it can be resealed. Release the motor connector, remove its mounting nuts, and work the motor out of the regulator without tearing the shield or pulling on the harness.
- Install the replacement motor
Position the new motor in the regulator and secure its fasteners to specification. Reconnect the motor harness, temporarily reconnect the window switch and battery as needed, and verify smooth operation before sealing the door.
- Restore the shield and door trim
Reseal the water shield continuously around its edges, then reconnect the speaker, switch, lock, and courtesy-light wiring. Hang the door panel on its upper edge, engage the clips and screws, reconnect the battery, and test the window and lock.
Check your vehicle’s repair manual for exact specifications and fit.