how to fix P0301 misfire code in Ford F-150 13th Generation (2015-2020)

Solution

1. Preparation

• Gather tools and parts needed for the repair.
• Disconnect the vehicle battery to ensure safety during the repair process.
• Ensure the engine is cool to avoid burns.

2. Replace Spark Plug

• Remove the engine cover if applicable.
• Disconnect the ignition coil connector.
• Remove the ignition coil from cylinder 1 (usually requires a socket wrench).
• Unscrew the spark plug using a spark plug socket and ratchet.
• Inspect the old spark plug; if damaged or worn, replace it with a new one (ensure it is properly gapped according to specifications).
• Install the new spark plug and torque it to the manufacturer’s specification (typically around 13-15 lb-ft).
• Reinstall the ignition coil and reconnect the connector.

3. Replace Ignition Coil (if needed)

• If the ignition coil is faulty, remove it as described in the previous step.
• Install a new ignition coil, ensuring it is seated properly.
• Reconnect the ignition coil connector.

4. Clean or Replace Fuel Injector (if needed)

• If the fuel injector is suspected to be clogged, remove the fuel injector from cylinder 1.
• Clean the injector using an appropriate fuel injector cleaner or replace it with a new one.
• Reinstall the fuel injector, ensuring proper seating and reconnect the connector.

5. Reassemble and Test

• Reconnect the battery terminal.
• Start the engine and allow it to idle for a few minutes.
• Clear the trouble codes using an OBD-II scanner and take the vehicle for a test drive to ensure the issue is resolved.