How To Replace Your Ford F-150 Spark Plugs With 3.5l Eco-boost

Introduction

This tutorial will guide you through the process of replacing the spark plugs in a 2009-2018 Ford F-150 equipped with a 3.5L EcoBoost engine. Regular maintenance of spark plugs is essential for optimal engine performance and fuel efficiency. Follow these step-by-step instructions to complete the task safely and effectively.

Step 1: Gather Necessary Tools and Materials

Before starting the replacement, ensure you have the following tools and materials:

• New Motorcraft Spark Plugs (Pack of 6)
• Ratchet and socket set (3/8 inch and 10mm sockets)
• Torque wrench
• Extension bar for ratchet
• Screwdriver set
• Vacuum cleaner or compressed air (for cleaning the spark plug area)
• Safety glasses and gloves

Step 2: Prepare the Vehicle

1. Park Safely: Ensure the vehicle is parked on a flat surface, and engage the parking brake.
2. Disconnect Battery: Open the hood and disconnect the negative terminal of the battery to prevent any electrical shorts.
3. Allow Engine to Cool: Make sure the engine is completely cool before proceeding to avoid burns.

Step 3: Remove Engine Cover

1. Locate Fasteners: Use a screwdriver to remove any screws or fasteners securing the engine cover.
2. Lift Off Cover: Carefully lift off the engine cover and set it aside.

Step 4: Access Spark Plugs

1. Locate Ignition Coils: Identify the ignition coils on top of the spark plugs.
2. Disconnect Coils: Unplug the electrical connectors from each ignition coil by pressing the release tab and pulling them off.

Step 5: Remove Ignition Coils

1. Unscrew Coils: Use a ratchet and socket to remove the bolts holding each ignition coil in place.
2. Take Out Coils: Gently pull the ignition coils out from the spark plug wells. If they are stuck, wiggle them slightly to loosen.

Step 6: Remove Old Spark Plugs

1. Clean the Area: Use a vacuum or compressed air to remove any debris from the spark plug wells to prevent contamination.
2. Use Spark Plug Socket: Attach the spark plug socket to a ratchet and carefully turn counterclockwise to loosen and remove each spark plug.
3. Inspect Old Plugs: Check old spark plugs for wear or damage, which can indicate engine issues.

Step 7: Install New Spark Plugs

1. Prepare New Plugs: Check the gap on the new spark plugs and adjust if necessary according to manufacturer specifications.
2. Insert Plugs: Hand-tighten the new spark plugs into their respective holes. Follow up with a ratchet to snug them down.
3. Torque to Specification: Use a torque wrench to tighten each spark plug to the manufacturer's recommended torque.

Step 8: Reinstall Ignition Coils

1. Position Coils: Place each ignition coil back into its corresponding well.
2. Secure Coils: Reinstall the screws to secure the coils in place.
3. Reconnect Electrical Connectors: Plug the electrical connectors back onto each ignition coil.

Step 9: Replace Engine Cover and Reconnect Battery

1. Put Back Engine Cover: Align the engine cover and secure it with screws or fasteners.
2. Reconnect Battery: Reattach the negative terminal of the battery to restore power.

Conclusion

Congratulations! You have successfully replaced the spark plugs in your Ford F-150. Regularly checking and replacing spark plugs can significantly improve your vehicle's performance and efficiency. For your next steps, monitor the engine's performance and consider scheduling routine maintenance to keep your truck running smoothly. If you encounter issues, consult a professional mechanic for further assistance.