how to fix P0301 misfire code on my Ford F-150 14th Generation (2021-2024)

Solution

1. Preparation

• Gather necessary tools and parts.
• Disconnect the battery to ensure safety while working on electrical components.

2. Replace Spark Plug

• Tools Required: Socket set (10mm socket), spark plug socket, torque wrench.
• Remove the engine cover if necessary.
• Disconnect the ignition coil connector from the spark plug.
• Remove the ignition coil by unbolting it (if applicable) and gently pulling it out.
• Use the spark plug socket to remove the spark plug from cylinder 1.
• Inspect the old spark plug for wear or damage; compare with specifications for correct gap.
• Install the new spark plug, ensuring it is gapped correctly.
• Torque the spark plug to the manufacturer’s specifications (usually around 13-15 lb-ft).
• Reinstall the ignition coil and reconnect the electrical connector.

3. Replace Ignition Coil (if necessary)

• If the ignition coil is found to be faulty, remove it by unbolting and lifting it off.
• Install the new ignition coil, ensuring it seats properly onto the spark plug.
• Reconnect the ignition coil connector.

4. Test Fuel Injector (if necessary)

• If the injector is suspected to be faulty, disconnect the fuel injector connector.
• Remove the fuel rail (if applicable) to access the injector.
• Replace the faulty fuel injector with a new one, ensuring it is seated properly in the fuel rail.
• Reconnect the fuel injector connector.

5. Final Assembly

• Reinstall any components removed during the process (e.g., engine cover).
• Reconnect the battery.