how to fix Ford Explorer Sixth Generation (2020-present) engine misfires

Solution

1. Preparation

• Gather all necessary tools and parts.
• Disconnect the battery to ensure safety.
• Allow the engine to cool down before working on it.

2. Replace Spark Plugs

• Sub-steps:
  1. Remove the engine cover (if applicable) using a socket set.
  2. Disconnect the ignition coils by unscrewing the bolts and pulling them out.
  3. Remove the old spark plugs using a spark plug socket and ratchet.
  4. Install new spark plugs, ensuring they are gapped correctly (refer to the owner's manual for specifications).
  5. Reconnect the ignition coils and secure them with bolts.

3. Inspect and Replace Ignition Coils

• Sub-steps:
  1. If any ignition coils were found defective during diagnostics, remove them by unscrewing the bolts.
  2. Install new ignition coils, ensuring they are seated properly.
  3. Reconnect any electrical connectors.

4. Clean or Replace Fuel Injectors

• Sub-steps:
  1. Remove the fuel rail by unscrewing the bolts and disconnecting electrical connectors.
  2. Remove the fuel injectors from the rail; clean them with a fuel injector cleaner or replace them if defective.
  3. Reinstall the cleaned or new injectors and reattach the fuel rail, ensuring all connections are secure.

5. Conduct a Compression Test

• Sub-steps:
  1. Remove the spark plugs to access the cylinders.
  2. Insert a compression tester into the spark plug hole of each cylinder.
  3. Crank the engine and record the compression readings.
  4. Compare the readings to manufacturer specifications; replace any faulty components as necessary.