how to inspect and replace spark plugs in Honda Accord 9th Generation (2013-2017)

Solution

1. Preparation

• Gather necessary tools and parts.
• Ensure the engine is cool to prevent burns.
• Disconnect the negative battery terminal to avoid electrical shorts.

Tools Required:

• Socket set (10mm and 5/8" sockets)
• Torque wrench
• Spark plug gap tool
• Ratchet and extension
• Pliers
• Compressed air (optional)

2. Remove Engine Cover (if applicable)

• Use a socket to remove the bolts securing the engine cover.
• Carefully lift the engine cover off and set it aside.

3. Remove Ignition Coils

• Disconnect the electrical connectors from each ignition coil.
• Remove the bolts securing the coils using a socket.
• Gently pull the ignition coils straight out of the spark plug wells.

4. Remove Spark Plugs

• Using a spark plug socket and ratchet, carefully loosen and remove each spark plug by turning it counterclockwise.
• If necessary, use compressed air to blow out any debris from the spark plug wells before removing the plugs.

5. Inspect and Replace Spark Plugs

• Examine the removed spark plugs for wear patterns, carbon deposits, and electrode condition.
• If replacement is needed, check the gap on the new spark plugs using a feeler gauge, adjusting as necessary to meet the manufacturer’s specification (typically around 0.043 inches for Honda).
• Install the new spark plugs by hand to avoid cross-threading, then tighten with the socket until snug, followed by a torque wrench to the specified torque (usually around 13 lb-ft).

6. Reinstall Ignition Coils

• Insert the ignition coils back into their respective positions.
• Secure them with the bolts and reconnect the electrical connectors.

7. Reinstall Engine Cover (if applicable)

• Place the engine cover back onto its mounting points.
• Secure it with the previously removed bolts.

8. Reconnect Battery

• Reconnect the negative battery terminal and ensure it is tight.