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

Solution

1. Preparation

• Gather tools and parts required for the repair.
• Disconnect the battery to ensure safety during work.

2. Replace Spark Plug

• Tools Required: Socket set, torque wrench.
• Remove the engine cover (if applicable).
• Disconnect the ignition coil connector.
• Remove the ignition coil for cylinder 1 by unbolting it.
• Remove the spark plug using a spark plug socket.
• Inspect the old spark plug for wear and gap specifications.
• Install the new spark plug with the correct gap setting and torque to manufacturer specifications (typically around 13 lb-ft).
• Reinstall the ignition coil and reconnect the connector.

3. Replace Ignition Coil (if necessary)

• If the ignition coil showed signs of damage, replace it by:
  • Unplugging the coil connector.
  • Removing mounting bolts.
  • Installing the new ignition coil and securing it with bolts.
  • Reconnect the ignition coil connector.

4. Clean or Replace Fuel Injector (if necessary)

• If the fuel injector is blocked or malfunctioning:
  • Remove the fuel rail (ensure to relieve fuel pressure first).
  • Disconnect the fuel injector connector.
  • Remove the injector from the rail.
  • Clean the injector with a cleaning solution or replace it with a new one.
  • Reinstall the fuel rail and ensure proper connection of the injector.

5. Check for Vacuum Leaks

• Inspect all vacuum lines connected to the intake manifold.
• Replace any cracked or damaged hoses.
• Ensure the intake manifold gaskets are in good condition.