This procedure covers the removal and replacement of the ignition control module on a 2021-2024 Ford F-150 with the 3.5L EcoBoost V6 engine.

Warnings

Tools required

Parts

• Ignition control module × 1 — Use OEM specification
• Engine cover clips (if damaged) × 4 — Use OEM specification

Preparation

1. Ensure engine is completely cold to the touch
2. Park vehicle on level ground and engage parking brake
3. Disconnect negative battery cable and wait 2 minutes minimum
4. Have replacement ignition control module ready and at room temperature

Procedure

1. 1

   Remove engine cover
   Grasp the engine cover firmly at the front corners and pull upward to disengage the mounting grommets. Lift the cover away from the engine bay and set aside. Inspect grommets for damage and replace if necessary.
2. 2

   Access ignition coils
   Locate all six ignition coils on top of the engine. The ignition control module is mounted on the passenger side valve cover or nearby bracket. Disconnect any wiring harness clips or brackets that may obstruct access to the module.
3. 3

   Remove ignition coils (if necessary)
   If the ignition control module is positioned beneath or adjacent to ignition coils, disconnect the electrical connectors from each affected coil by pressing the release tab and pulling straight up. Remove the ignition coil mounting bolts and carefully pull each coil straight up from the spark plug well. Keep coils organized by cylinder position.
   ⚠Do not twist ignition coils while removing; pull straight up to avoid damaging spark plug boots
   Torque spec

   Ignition Coil Bolts8 Nm (6 lb-ft)
4. 4

   Locate ignition control module
   The ignition control module is typically mounted on the passenger side of the engine, either on the valve cover or on a dedicated bracket. It will have a large multi-pin electrical connector. Verify you have located the correct module by confirming part number or connector configuration matches your replacement part.
5. 5

   Disconnect module electrical connector
   Press down on the connector locking tab or slide the safety lock (depending on connector type) and carefully pull the electrical connector straight away from the ignition control module. Avoid pulling on the wiring harness itself. Inspect connector pins for corrosion or damage.
   ℹ️Some connectors may have secondary locks that must be released before the main connector can be removed
6. 6

   Remove module mounting hardware
   Remove the mounting bolts securing the ignition control module to its bracket or valve cover using the appropriate socket. Support the module with one hand while removing the final bolt to prevent it from falling. Note the orientation and position of the module for installation.
   ⚠Keep track of any spacers, washers, or grounding straps that may be present under mounting bolts
   Torque spec

   Mounting Bolts31 Nm (23 lb-ft)
7. 7

   Remove ignition control module
   Carefully lift the ignition control module away from its mounting location. Check for any additional wiring, grounding straps, or brackets that may still be attached. Inspect the mounting surface for debris or corrosion and clean if necessary with a shop towel.
8. 8

   Prepare new module
   Remove the new ignition control module from its packaging. Verify the part number matches the original module. If the module has a protective cover over the connector, remove it. Apply a thin coat of dielectric grease to the electrical connector seal if not pre-applied.
9. 9

   Install new ignition control module
   Position the new ignition control module in the mounting location, ensuring it is oriented correctly and any grounding straps or spacers are in place. Start all mounting bolts by hand to ensure proper thread engagement before tightening.
   ⚠Ensure the module sits flush against its mounting surface; any gaps may indicate improper installation or foreign debris
   Torque spec

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

    Connect electrical connector
    Align the electrical connector with the ignition control module and press firmly until you hear or feel a positive click. Ensure the locking tab or safety lock fully engages. Gently tug on the connector to verify it is secure.
11. 11

    Reinstall ignition coils
    If ignition coils were removed, apply a thin coat of dielectric grease to the inside of each spark plug boot. Insert each coil into its respective spark plug well, ensuring it seats fully. Install and torque the ignition coil mounting bolts to specification. Reconnect all coil electrical connectors until they click into place.
    Torque spec

    Ignition Coil Bolts8 Nm (6 lb-ft)
12. 12

    Reinstall engine cover and reconnect battery
    Position the engine cover over the engine and press down firmly at all mounting points until the grommets snap into place. Reconnect the negative battery cable and torque to specification per battery terminal requirements.

Reassembly

1. Ensure all electrical connectors are fully seated and locked
2. Verify all mounting bolts are torqued to specification
3. Confirm engine cover is properly seated on all grommets
4. Double-check that no tools or parts were left in the engine bay

Verification

• Turn ignition key to ON position (do not start) and verify check engine light illuminates then extinguishes normally
• Start the engine and listen for smooth operation without misfires or rough idle
• Verify no warning lights remain illuminated on the instrument cluster
• If available, use a scan tool to verify no ignition-related diagnostic trouble codes are present
• Test drive the vehicle to confirm normal acceleration and engine performance under load

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