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How to Replace a Power Window Regulator in a 1993 F 150

Ford offered a power window regulator as optional equipment in the 1993 F-150 trucks. The power window regulator replaces the manual window crank with an electric motor controlled by switches on the door trim panel. Failure of the power window regulator can occur over time because of poor lubrication that increases friction within the system. The friction leads to an increased load and insulation breakdown within the motor. Bad motors are not serviceable and must be replaced to restore power window function.

Instructions

1

Remove the power window control retainer screw from the window control and door lock switch housing, using a Phillips screwdriver. Carefully separate the window control housing from the door trim panel enough to gain access to the underside of the housing. Do not pull the housing any farther than necessary or you risk damaging the electrical connections at the control.

2

Remove the three screws holding the window control and door lock switch, and the wiring in place under the control housing. Pull the housing off the controls. Feed the wiring and controls back through the control opening in the door trim panel.

3

Locate the door trim pushpin on the trailing edge of the door trim panel toward the bottom. Carefully pry out the center button of the pushpin a short distance using a small flat-head screwdriver to disengage the pin, then pull the pin body out of the panel.

4

Remove the screw located within the armrest pull using a Phillips screwdriver. Remove the screw from the top forward area of the trim panel using a Phillips screwdriver.

5

Remove the upper door trim panel from the door. Remove the five screws from the bottom of the lower door trim panel and map compartment using a Phillips screwdriver. Remove the lower trim panel from the door if the truck has the two-piece Lo-Series trim panel.

6

Remove the four screws from the bottom of the trim panel using a Phillips screwdriver. Remove the panel from the door if the truck has the one-piece Hi-Series trim panel.

7

Carefully peel the plastic water shield off the inner door panel. Place the water shield aside, adhesive-side up, in a safe place where the adhesive will not become contaminated with dust or grit.

8

Disconnect the window motor power supply wire from the wiring harness within the door.

9

Locate the drill dimples in the inner door panel over the two unexposed motor drive retaining screws. Check behind the dimples and make certain there are no wires in line with the dimples. Drill a hole through each of the drill dimples using a 1/2-inch drill bit and drill motor. Remove the motor retaining screws through the two drilled holes and the other existing hole over the motor drive unit using a ratchet, extension and socket.

10

Push the motor drive unit away from the inner door panel to disengage it from the window regulator arm. Push the window to the full up position and prop it in place using a short wooden dowel. Remove the old motor from the door.

11

Install the new motor in the door and engage it with the window regulator. Tighten the motor retaining screws to 50 to 85 inch-pounds using an inch-pound torque wrench, extension and socket.

12

Apply two, 1-inch square pieces of pressure-sensitive waterproof tape over the drilled holes in the inner door panel.

13

Connect the window motor power supply wire to the wiring harness. Remove the window prop dowel. Actuate the window motor using the window control, and check for full window operation.

14

Inspect the door drain holes located at the bottom of the door; make certain they are open and free of debris.

15

Install the plastic water shield on the inner door panel. Make certain the adhesive holds the shield firmly in place around the access hole in the inner door panel.

16

Install the lower door trim panel and panel screws on two-piece Lo-Series door trim panels. Feed the power window control and door lock switch through its hole in the upper door trim panel, and engage the upper panel with the lower panel. Install the upper door trim panel screws.

17

Feed the power window control and door lock switch through its hole in the one-piece Hi-Series door trim panel, then install the door trim panel screws.

18

Insert the door trim pushpin body in its hole in the panel. Push the center button of the pushpin in to expand the pin and engage it in the inner door panel.

19

Install the window control and door lock switch in its housing and install the three control-to-housing screws using a Phillips screwdriver. Install the housing on the door trim panel and install the housing retaining screw.