how to fix P0301 code in Ford Explorer Fifth Generation (2011-2019)

Solution

1. Preparation

• Gather tools and parts as listed below.
• Disconnect the negative battery terminal to prevent electrical shock.
• Allow the engine to cool completely before beginning work.

2. Replace Spark Plug

• Tools Required: Socket set, torque wrench, spark plug socket, dielectric grease.
• Remove the ignition coil from cylinder 1:
  1. Unplug the electrical connector from the ignition coil.
  2. Remove the bolts securing the coil using a socket set.
  3. Pull the ignition coil out gently.
• Remove the spark plug:
  1. Use the spark plug socket to unscrew and remove the old spark plug.
  2. Inspect the old spark plug for signs of wear or fouling.
• Install a new spark plug:
  1. Apply a small amount of dielectric grease to the threads of the new spark plug.
  2. Hand-tighten the new spark plug and then torque it to the manufacturer's specification (typically around 13-15 ft-lbs).
• Reinstall the ignition coil and connect the electrical connector.

3. Replace Ignition Coil (if necessary)

• Tools Required: Socket set, torque wrench.
• If the ignition coil is found to be faulty:
  1. Remove the ignition coil as described in step 2.
  2. Install the new ignition coil by positioning it over the spark plug and securing it with bolts.
  3. Reconnect the electrical connector.

4. Inspect and Clean Fuel Injector (if necessary)

• Tools Required: Fuel injector cleaning kit or replacement injector.
• If the fuel injector is suspected to be clogged:
  1. Disconnect the fuel injector connector.
  2. Remove the fuel rail (follow specific steps for the Explorer model).
  3. Extract the injector and inspect for clogs.
  4. Clean the injector using a cleaning kit or replace it with a new one.
  5. Reassemble the fuel rail and reconnect the injector.