How to Replace a Window Regulator in a 1990 Ford F250

Ford offered the 1990 F250 3/4-ton pickup truck with manual or power windows in the front doors. Inside each door is a window regulator -- a scissor-like mechanical device that converts torque to up or down motion to close or open the window. Power windows have electric motors that turn a gear on the regulator to generate this torque. Manual windows use a crank handle that you must rotate by hand to operate the window. In either case, if the regulator breaks, you'll need to replace it to restore proper operation to your F250's window.

Instructions

1

Pry the window crank handle from the door, using the window crank-removal tool. Dislodge the C-clip retainer from the crank handle by inserting the window tool between the crank hub and the door panel and pushing the clip off the handle. For power windows, skip to Step 2.

2

Remove the door panel-retaining screws from the door panel, using a Phillips screwdriver. Slide the tip of the window crank-removal tool between the door panel and door skin at the lower-trailing edge of the door panel and pry the panel off the door. Several trim pins hold the panel in place, so look between the panel and door to locate each pin and pry it free from the door skin with the window tool.

3

Lift the door panel off the door. Reach between the panel and the door and disconnect the courtesy light from the door harness, if so equipped, and the power lock and window switches, if so equipped. Set the door panel aside.

4

Lift the window to the top of the door and tape the glass to the window frame, using packing tape. Unbolt the old window regulator from the door brackets, window base and window motor (if so equipped), using the socket wrench and 13 mm socket.

5

Collapse the old window regulator and pull it out of the door. Insert the new window regulator in reverse manner. Bolt the new window regulator to the door brackets, window motor (if so equipped) and window base.

6

Remove the packing tape from the window glass. Lower the window back into the door manually, if your truck does not have power windows. Connect the power window switch and lower the window with the switch, if you have power windows.

7

Lower the door panel onto the door, making sure to guide the lock rod through the top of the door panel. Connect the courtesy light and power switches, if so equipped. Guide the inner door handle through the opening in the door panel.

8

Seat all the trim pins into the door skin -- this may require hammering on the door panel, adjacent to the pins, using the side of your fist. Reinstall the door panel retaining screws, using the Phillips screwdriver.

9

Push the window crank onto the window regulator stud. Snap the C-clip in place to hold the crank onto the door.