This procedure covers the removal and replacement of the engine cooling fan assembly on a 2015-2020 Ford F-150 with the 3.5L EcoBoost V6 engine.

Warnings

Tools required

Parts

• Cooling fan assembly (if defective) × 1 — Use OEM specification
• Fan shroud clips (as needed) × 4 — Use OEM specification

Fluids

• Motorcraft Orange Coolant — 1 qt

Preparation

1. Ensure engine is completely cool to the touch
2. Park vehicle on level ground and engage parking brake
3. Open hood and secure in upright position
4. Disconnect negative battery cable and wait 2 minutes to allow electrical systems to discharge
5. Place drain pan under vehicle if partial coolant drainage is necessary

Procedure

1. 1

   Remove engine cover
   Lift up on the plastic engine cover to release the rubber grommets from the mounting posts. Remove the cover and set aside.
2. 2

   Remove air intake system
   Loosen the hose clamp at the throttle body and disconnect the air intake tube. Release the clips securing the air filter housing and remove the entire air intake assembly to provide access to the cooling fan.
   Torque spec

   Hose Clamps3 Nm (2 lb-ft)
3. 3

   Disconnect cooling fan electrical connector
   Locate the cooling fan electrical connector on the passenger side of the fan shroud. Press the release tab and disconnect the connector. Unclip the wiring harness from any retaining clips on the fan shroud.
4. 4

   Disconnect upper radiator hose (if necessary)
   If upper radiator hose interferes with fan removal, loosen the hose clamp at the radiator and slide it back on the hose. Gently twist and pull the hose off the radiator neck. Be prepared for minor coolant spillage.
   ⚠Even with a cool engine, residual coolant in the hose may be warm. Have shop towels ready.
   Torque spec

   Hose Clamps3 Nm (2 lb-ft)
5. 5

   Remove fan shroud upper mounting bolts
   Locate the two upper fan shroud mounting bolts at the top of the radiator support. Using a 10mm socket, remove both bolts completely and set aside. The fan shroud assembly is now supported only by lower tabs.
6. 6

   Remove cooling fan assembly
   Carefully lift the cooling fan and shroud assembly straight up and out of the engine bay. The lower tabs will disengage from the radiator as you lift. Tilt the assembly as needed to clear the radiator and surrounding components. Be mindful of the fan blade clearance.
   ⚠The assembly is awkward and moderately heavy. Use caution when lifting to avoid dropping it onto the radiator or other components.
7. 7

   Inspect radiator and cooling system
   With the fan assembly removed, visually inspect the radiator fins for damage, debris, or blockage. Check radiator mounting tabs for cracks. Inspect coolant hoses for deterioration or cracks. Clean any debris from the radiator face using compressed air from the engine side outward.
8. 8

   Install cooling fan assembly
   Carefully lower the new or reinstalled cooling fan and shroud assembly into position, aligning the lower tabs with the slots in the bottom of the radiator. Ensure the assembly sits flush against the radiator and the upper mounting holes align with the radiator support.
9. 9

   Install fan shroud mounting bolts
   Install the two upper 10mm fan shroud mounting bolts finger-tight, then torque to specification using a torque wrench. Verify the shroud is properly seated on the lower tabs and flush against the radiator.
   Torque spec

   Mounting Bolts31 Nm (23 lb-ft)
10. 10

    Reconnect upper radiator hose
    If removed, slide the upper radiator hose back onto the radiator neck, ensuring it is fully seated. Position the hose clamp over the connection point and tighten to specification.
    Torque spec

    Hose Clamps3 Nm (2 lb-ft)
11. 11

    Reconnect cooling fan electrical connector
    Connect the cooling fan electrical connector until it clicks into place. Secure the wiring harness to any retaining clips on the fan shroud to prevent interference with the fan blade.
12. 12

    Reinstall air intake system
    Position the air intake assembly back into place and secure all mounting clips. Connect the air intake tube to the throttle body and tighten the hose clamp to specification.
    Torque spec

    Hose Clamps3 Nm (2 lb-ft)
13. 13

    Reinstall engine cover and reconnect battery
    Align the engine cover grommets with the mounting posts and press down firmly until seated. Reconnect the negative battery cable and tighten securely.

Reassembly

1. Verify all electrical connectors are fully seated and secured
2. Ensure no tools or parts were left in the engine bay
3. Check coolant level in the overflow reservoir and top off with Motorcraft Orange Coolant if needed
4. Verify all hose clamps are properly tightened to prevent coolant leaks

Verification

• Start the engine and allow it to idle. Listen for unusual noises from the cooling fan area
• Observe the cooling fan operation. It should engage when engine temperature reaches normal operating range or when A/C is activated
• Check for coolant leaks around the upper radiator hose connection if it was disconnected
• Verify engine temperature remains in normal range and cooling fan cycles on and off appropriately
• Turn on the air conditioning and verify the cooling fan engages immediately at high speed

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