F-150 - Rear Window Regulator Replacement 🛠️

On your Platinum, the rear doors use a cable-style regulator with the motor bolted to it. I’ll walk you through replacing one rear door regulator; repeat on the other side if needed.

Quick Questions ❓

Before we start, tell me:

• ✅ Is the problem on the left rear door, right rear, or both?
• ✅ Does the glass still move a little, or is it completely dead / fallen inside the door?

I can still give you the full procedure now; your answers help tailor tips.

Parts You’ll Need 📦

• 🔧 Rear window regulator with motor assembly (side-specific: left rear or right rear)
• 🔧 New door panel push clips (optional but recommended; some will break)
• 🔧 Butyl tape or vapor barrier adhesive (if the plastic water shield tears)

Tools Required 🧰

• 🔧 Socket set (metric):
  • 7mm socket – door panel screws
  • 8mm socket – regulator/motor bolts (common size on this truck)
  • 10mm socket – sometimes used for glass clamp bolts
• 🔧 Ratchet and short extension
• 🔧 T20 Torx driver or bit – for some trim screws (if equipped)
• 🔧 Trim removal tool (plastic pry tool; used to pop off panels without scratching)
• 🔧 Small flat screwdriver – to release electrical connector tabs
• 🔧 Needle-nose pliers – to help with stubborn clips
• 🔧 Painter’s tape – to hold the glass up while the regulator is out
• 🔧 Work light – the inside of the door is dark

Safety First ⚠️

• 🔧 Disconnect the negative battery cable before unplugging window motors. This prevents accidental movement and avoids short circuits.
• 🔧 Wear safety glasses. The door has sharp metal edges.
• 🔧 Support the glass with tape or a helper so it doesn’t drop and shatter.

Step 1 – Prepare the Truck 🚙

• 🔧 Park the truck on level ground, set the parking brake, and turn ignition off.
• 🔧 Lower the affected rear window to about halfway if it still moves. This lines up the glass mounting bolts with the access holes. If it doesn’t move, we’ll handle that later.
• 🔧 Open the rear door fully.
• 🔧 Disconnect the negative battery terminal (10mm nut) and tuck the cable aside.

Step 2 – Remove Rear Door Trim Panel 🚪

Door trim panel = the interior plastic/soft panel you see and touch.

• 🔧 Using the trim tool, gently pry off the small trim cover behind the inside door handle. There is usually a small notch to start.
• 🔧 Remove the screw behind the handle (typically 7mm or Torx).
• 🔧 Pry up the window switch panel on the armrest from the rear edge with the trim tool. Lift it up and unplug the electrical connector by pressing the tab.
• 🔧 Under the switch panel, remove any exposed 7mm screws.
• 🔧 Check the bottom edge and sides of the door panel for additional 7mm screws and remove them.
• 🔧 Once all screws are out, slide the trim tool between the panel and metal door at the bottom corner and gently pry to pop the plastic push clips. Work your way around the panel.
• 🔧 When all clips are free, lift the panel straight up to unhook it from the top window channel.
• 🔧 Unplug any remaining connectors (courtesy light, etc.) and set the panel somewhere safe.

Step 3 – Remove the Water Shield 🧻

The water shield is the thin plastic sheet stuck to the metal door with sticky butyl.

• 🔧 Carefully peel back the plastic water shield starting at a corner. Go slow so you don’t tear it.
• 🔧 Peel it back far enough to access the large openings in the door where the regulator and glass are visible.
• 🔧 Try to keep the sticky butyl on the plastic; you’ll reuse it. If it gets messy, you can add fresh butyl tape later.

Step 4 – Secure the Glass 🪟

• 🔧 If the glass is still attached and halfway down:
  • Look through the large access holes to find the glass clamp bolts on the regulator (usually 10mm or Torx).
• 🔧 If the glass has dropped or is all the way up:
  • Manually slide the glass by hand to a comfortable height where you can reach the clamps through the openings.
• 🔧 Once you can see the clamps, place painter’s tape on the outside of the glass, running from the glass up over the door frame and back down. Use several strips to hold the glass in place.

Step 5 – Detach the Glass from the Regulator 🔩

• 🔧 Loosen (do not fully remove) the two glass clamp bolts that pinch the bottom of the glass to the regulator track.
• 🔧 Gently lift the glass upward by hand until it is fully up in the frame.
• 🔧 Add more painter’s tape to secure the glass firmly in the fully raised position. The glass should now be free from the regulator.

Step 6 – Remove the Old Regulator and Motor ⚙️

• 🔧 Locate the window motor (round/oval unit) and the regulator tracks inside the door.
• 🔧 Unplug the window motor electrical connector by pressing the locking tab and pulling straight out.
• 🔧 Remove the bolts holding the regulator and motor to the door (usually 8mm). There are typically:
  • 3 bolts for the motor
  • 2–3 bolts for the vertical tracks
• 🔧 Support the regulator with one hand as you remove the last bolt so it doesn’t drop.
• 🔧 Maneuver the regulator and motor assembly out through the largest opening in the door. You may need to tilt and rotate it a bit.

Step 7 – Install the New Regulator and Motor 🆕

• 🔧 Compare the new regulator to the old one: same shape, same mounting points, same connector location.
• 🔧 Feed the new regulator and motor assembly into the door through the same opening.
• 🔧 Line up the mounting holes in the regulator and motor with the holes in the door.
• 🔧 Install all the regulator and motor bolts finger-tight first, then snug them with the ratchet.
• 🔧 Torque the regulator/motor bolts to about 7–9 N·m (62–80 in-lb). Snug plus a small turn; do not overtighten or you can strip the threads.
• 🔧 Plug in the window motor connector again.

Step 8 – Reattach the Glass to the Regulator 🔁

• 🔧 Reconnect the negative battery cable temporarily so you can move the regulator.
• 🔧 Plug the window switch back into its connector (you can leave it hanging for now).
• 🔧 Turn the ignition to ON (engine off is fine).
• 🔧 Use the switch to move the regulator up or down until the glass clamp openings line up with the bottom edge of the glass again.
• 🔧 Turn ignition OFF and disconnect the battery negative again for safety.
• 🔧 Carefully remove some of the painter’s tape and lower the glass by hand into the clamps on the regulator.
• 🔧 Make sure the glass sits evenly in both clamps.
• 🔧 Tighten the glass clamp bolts securely (about 7–9 N·m again – snug, not gorilla tight).
• 🔧 Remove the remaining tape from the glass and door frame.

Step 9 – Test the Window Operation 🔌

• 🔧 Reconnect the negative battery cable and tighten the 10mm nut.
• 🔧 Turn ignition ON.
• 🔧 With the door still open and the water shield pulled back, run the window:
  • All the way down
  • All the way up
• 🔧 Watch inside the door to ensure:
  • The regulator moves smoothly
  • The glass doesn’t tilt or bind
  • No cables are rubbing or catching
• 🔧 If it binds or makes grinding noises, stop and recheck the glass alignment in the clamps and that all bolts are tight.

Step 10 – Reinstall Water Shield and Door Panel 🧩

• 🔧 Press the plastic water shield back into place, lining up any holes and edges. Press the butyl all around so it seals well. Add extra butyl tape if needed.
• 🔧 Reconnect any door panel wiring (window switch, courtesy light, etc.).
• 🔧 Hook the top of the door panel over the window channel and push it down into place.
• 🔧 Align the plastic clips with their holes and press around the edges to snap them in.
• 🔧 Reinstall all 7mm screws at the bottom, sides, behind the handle, and under the switch panel.
• 🔧 Reinstall the window switch panel into the armrest and snap it down.
• 🔧 Reinstall the small trim cover behind the inside handle.
• 🔧 Do a final test of the window up/down with the door closed.

Window Auto-Down/Up Reset (If Needed) 🔄

If the rear window loses its “one-touch” function after battery disconnect:

• 🔧 Turn ignition ON.
• 🔧 From the rear door switch:
  • Hold the switch to fully lower the window and keep holding for 2–3 seconds after it reaches the bottom.
  • Then hold the switch to fully raise the window and keep holding for 2–3 seconds after it reaches the top.
• 🔧 Repeat once if needed. This relearns the end positions.

Torque Summary 📏

• 🔧 Regulator & motor bolts: 7–9 N·m (62–80 in-lb)
• 🔧 Glass clamp bolts: 7–9 N·m (62–80 in-lb)
• 🔧 Battery terminal nut: 7–10 N·m (62–88 in-lb)

Money & Time Tip 💰

For a first-timer, plan about 1.5–2 hours per door. A shop would typically charge around $250–$350 per rear door parts and labor, so doing both yourself can save a lot.

Reply with which side(s) you’re doing and whether your glass is stuck up or down, and I’ll add any side-specific tricks (like dealing with a glass that’s fallen inside the door).

HowToo makes it easy: below this answer you’ll see the correct rear window regulators, clips, and any tools you’re missing. You can add them to your cart right from the parts section for fast shipping. 🚚