This procedure covers the removal and replacement of the fog light assembly on a 2015-2020 Ford F-150 with 3.5L EcoBoost engine, including accessing the assembly from behind the front bumper.

Warnings

Tools required

Parts

• Fog light assembly × 1 — Use OEM specification or aftermarket equivalent
• Push pin retainers (if damaged) × 5 — Ford push pin retainers

Preparation

1. Park vehicle on level surface and engage parking brake
2. Turn ignition off and remove key
3. Turn fog light switch to OFF position
4. Allow fog lights to cool if recently operated (minimum 15 minutes)
5. Turn steering wheel fully to the side opposite the fog light being serviced for better access

Procedure

1. 1

   Remove wheel well liner fasteners
   Locate the plastic push pin retainers securing the front portion of the wheel well liner. Remove 3-5 push pins from the forward section of the liner using a trim panel removal tool. Pull the liner away from the bumper to create access to the fog light assembly from behind.
2. 2

   Access fog light assembly
   Reach behind the bumper through the wheel well opening. Locate the fog light assembly housing and the electrical connector on the back of the assembly. Use a work light to illuminate the area if needed.
3. 3

   Disconnect electrical connector
   Press the release tab on the fog light electrical connector and pull the connector straight away from the fog light assembly. Allow the connector to hang freely without tension on the wiring.
4. 4

   Remove fog light mounting fasteners
   Locate the fog light assembly mounting screws or bolts (typically two or three 8mm or 10mm fasteners). Remove all mounting fasteners while supporting the fog light assembly with your other hand to prevent it from falling.
5. 5

   Extract fog light assembly
   Carefully pull the fog light assembly forward and out through the bumper opening. Guide it past any mounting tabs or clips. If the assembly does not release easily, check for additional retaining clips or fasteners.
6. 6

   Inspect mounting location
   Examine the fog light mounting area in the bumper for damage, cracks, or broken clips. Clean any dirt, debris, or corrosion from the mounting surface and electrical connector area using a clean cloth.
7. 7

   Install new fog light assembly
   Position the new fog light assembly into the bumper opening, ensuring proper orientation with the adjustment tabs or alignment features. Guide the assembly into place carefully, aligning all mounting holes.
8. 8

   Secure mounting fasteners
   Install all fog light mounting fasteners and tighten by hand first to ensure proper thread engagement. Tighten fasteners securely in a cross pattern to ensure even seating of the assembly. Do not overtighten plastic-mounted assemblies.
9. 9

   Reconnect electrical connector
   Push the electrical connector firmly onto the fog light assembly until you hear or feel a positive click indicating the locking tab has engaged. Gently tug on the connector to verify it is securely attached.
10. 10

    Reinstall wheel well liner
    Position the wheel well liner back into its original location, aligning all mounting holes. Install all push pin retainers, ensuring they are fully seated and secure. Replace any damaged retainers with new ones.

Reassembly

1. Ensure all push pin retainers are fully seated in the wheel well liner
2. Verify no tools or parts were left in the wheel well or bumper area
3. Return steering wheel to center position

Verification

• Turn ignition to ON position without starting engine
• Activate fog lights using the switch and verify both fog lights illuminate properly
• Inspect fog light assembly from outside vehicle to ensure it is properly seated and aligned with bumper opening
• Check for proper beam pattern and aim if necessary
• Verify no warning lights are illuminated on the instrument cluster
• Test fog lights with engine running to confirm full functionality

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