how to fix P0301 misfire code in my Ford Explorer Sixth Generation (2020-present)?

Solution

1. Preparation

• Gather necessary tools and parts.
• Park the vehicle on a level surface and engage the parking brake.
• Disconnect the battery to prevent electrical shorts.

2. Replace Spark Plug and Ignition Coil

• Tools Required: Socket set, torque wrench, ratchet, spark plug socket, dielectric grease.
• Remove the necessary engine cover to access the ignition coil and spark plug.
• Disconnect the electrical connector from the ignition coil.
• Remove the ignition coil bolts and pull out the ignition coil.
• Remove the spark plug using a spark plug socket.
• Inspect the old spark plug; replace it if worn or damaged.
• Install the new spark plug, hand-tighten, then torque to the manufacturer’s specification (typically around 13-15 lb-ft).
• Apply dielectric grease to the ignition coil boot and reinstall the ignition coil.
• Secure the ignition coil with bolts and reconnect the electrical connector.

3. Inspect and Replace Fuel Injector (if necessary)

• Tools Required: Fuel injector removal tool, socket set, O-ring lubricant.
• Locate the fuel rail and disconnect the fuel lines, taking care to relieve fuel pressure beforehand.
• Remove the bolts securing the fuel rail and carefully lift it to access the fuel injectors.
• Remove the old fuel injector from the rail.
• Check the O-rings for damage and replace if necessary, using O-ring lubricant to ensure a proper seal.
• Install the new fuel injector, secure it back into the fuel rail, and reattach the fuel rail to the engine.

4. Final Checks

• Reconnect the battery and clear the error codes using the OBD-II scanner.
• Start the engine and allow it to reach operating temperature while monitoring for any misfire symptoms.