How to replace a window lift motor on a 95 Corsica

WINDOW MOTOR
Removal
Raise window to full up position and secure in place. Remove door panel covering and insulator. Window may be disengaged from regulator and removed from vehicle. If motor is held to door and regulator with nuts and bolts, remove nuts and bolts as necessary.
If motor is held to door and regulator with rivets, punch out center of regulator-to-door rivets and drill out rivets using a 1/4" drill bit. Disconnect window from regulator.
Move regulator and motor assembly rearward to access motor-to-regulator rivets. Punch out center of motor-to-regulator rivets and drill out rivets using a 3/16" drill bit. On all models, disconnect electrical connector and remove motor from door.

That pw motor may be riveted in place so you will eneed to remove the rivets and have a large rivet gun to replace it. Or if you have a lrge air rivet gun that will work as well. Some may have bolts. You will need to remove the door panel then the window from the motor assy as that will have the regulator with it.