Assumption: This applies to the rear door power window regulator on your F-150 SuperCab.

🔧 Rear Window Regulator - Replacement

The rear window regulator moves the glass up and down inside the rear door. If the window is stuck, slow, noisy, or crooked, the regulator or its cable assembly is often worn out and needs replacement.

Difficulty Level: Intermediate | Estimated Time: 2-4 hours

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⚠️ Safety & Precautions

• Support the window glass before removing the regulator. The glass can drop suddenly.
• Disconnect the negative battery cable before unplugging the door harness. This helps prevent accidental window motor operation.
• Use care around sharp door shell edges and the vapor barrier.
• If the window has anti-pinch operation, do not cycle it with the regulator removed.
• Wear safety glasses and gloves.

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🔧 Required Tools

You'll need the following tools for this repair:

• 8mm socket
• 10mm socket
• 7mm socket
• Ratchet
• Trim panel removal tool
• Phillips screwdriver
• Flat blade screwdriver
• Torque wrench
• Painter’s tape
• Gloves
• Safety glasses

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🔩 Required Parts

HowToo sells all the parts you need for this repair:

• Rear window regulator - Qty: 1
• Rear window motor - Qty: 1 if replaced with regulator
• Door panel clips - Qty: 1 set
• Vapor barrier butyl tape - Qty: 1

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📋 Before You Begin

• Park on level ground and set the parking brake.
• Lower the rear window only if it still moves enough to access the glass bolts.
• Disconnect the negative battery cable before starting.
• Have tape ready to hold the glass in the raised position.

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🔨 Step-by-Step Instructions

Follow these steps in order:

Step 1: Remove the door panel

• Use a 7mm socket to remove the door panel screws.
• Use a trim panel removal tool to pop the panel clips free.
• Lift the panel upward to unhook it from the top edge of the door.
• Disconnect the electrical connectors for the switch panel and speakers.

Step 2: Remove the vapor barrier

• Use a flat blade screwdriver carefully to lift the vapor barrier edge.
• Peel it back slowly so the adhesive stays usable.
• Do not tear the barrier.

Step 3: Secure the glass

• Use painter’s tape to hold the window glass fully up.
• Run the tape from the outside of the glass over the door frame and back down the inside.
• This keeps the glass from falling when the regulator is removed.

Step 4: Disconnect the glass from the regulator

• Use a 10mm socket to remove the glass-to-regulator fasteners through the access openings.
• Carefully slide the glass upward if needed to gain access.
• Make sure the glass stays taped in place.

Step 5: Remove the regulator and motor assembly

• Use an 8mm socket to remove the regulator mounting bolts.
• Use a 10mm socket if the motor is attached separately and needs removal.
• Disconnect the motor electrical connector.
• Work the regulator out through the largest service opening in the door.
• Rotate the assembly slowly.

Step 6: Install the new regulator

• Feed the new regulator into the door shell the same way the old one came out.
• Start all mounting bolts by hand first.
• Reconnect the motor electrical connector.
• Torque to 8-10 Nm (71-89 in-lbs) for small regulator bolts unless your replacement includes different instructions.

Step 7: Reattach the glass

• Lower the taped glass carefully onto the regulator clamps.
• Use a 10mm socket to tighten the glass fasteners.
• Torque to 8-10 Nm (71-89 in-lbs) for the glass-to-regulator fasteners.
• Remove the painter’s tape after the glass is secured.

Step 8: Test the window before reassembly

• Reconnect the battery negative cable.
• Use the window switch to move the glass up and down.
• Check that the glass stays level and does not bind.
• If the motor runs backward or the window moves oddly, stop and recheck the connector and regulator track alignment.

Step 9: Reinstall the door panel

• Press the vapor barrier back into place with fresh butyl tape if needed.
• Reconnect all electrical connectors.
• Hook the top of the door panel on first, then press the clips in.
• Use a 7mm socket to reinstall the screws.
• Torque to 2-3 Nm (18-27 in-lbs) for door panel screws if equipped with small fasteners.

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✅ After Repair

• Cycle the rear window several times and listen for smooth movement.
• Check the glass alignment at the top and bottom of travel.
• Make sure the door panel is fully clipped in and does not rattle.
• If the window has one-touch or anti-pinch, relearn the system by fully lowering and fully raising the window once or twice.

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💰 DIY vs Shop Cost

Shop Cost: $350-$700 (parts + labor)

DIY Cost: $90-$220 (parts only)

You Save: $260-$480 by doing it yourself!

Shop labor rates vary but typically run $100-$150/hour. This repair takes a shop approximately 2-4 hours.

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🎯 Ready to get started?

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