FIXONIC
SellSavedMy Fixonic
Official iFixit API visual reference

2012-2015 Honda Civic Spark Plugs Replacement

The owner's manual recommends that your spark...

iFixit Library 2012-2015 Honda Civic Moderate 40 minutes Guide 167791
Open the authorised source
Licensed iFixit integration

This attributed iFixit guide is displayed through Fixonic's recorded commercial API permission. iFixit remains the independent source and author of the procedure.

Guide overview

Before you begin

The owner's manual recommends that your spark plugs are changed approximately every 30,000 miles.

Step 1

Repair step

  • Use a flathead screwdriver to remove the two screws holding the engine cover in place.
  • Remove the engine cover.
Step 2

Repair step

  • Locate the four spark plug connectors.
  • Insert a screwdriver into the space in the wire connector and lift the lid.
Step 3

Repair step

  • Locate the bolt securing the ignition coil.
  • Use a wrench with a 10 mm socket to remove the bolt securing the ignition coil.
  • Once the bolt is removed, pull out the ignition coil.
Step 4

Repair step

  • Locate the old spark plug.
  • Use a wrench with a spark plug socket (with a rubber grommet) to unscrew the spark plug.
  • Once the spark plug is unscrewed, pull out the wrench along with the spark plug.
Step 5

Repair step

  • Ensure that the new spark plug is dry.
  • Use a gap measuring tool to ensure that the spark plug gap is appropriate.
  • It is optional to lightly coat the threads with anti-seize to help remove them in the future.
  • Do not get anti-seize on the electrodes (the gap at the top of the threads).
Step 6

Repair step

  • Attach the new spark plug to the spark plug socket, and finger tighten the new spark plug.
  • Use the wrench to tighten the spark plug to 45 degrees.
  • Do not overtighten the spark plug.
  • Re-insert the ignition coil.
Step 7

Repair step

  • Use the wrench with the 10 mm socket to tighten the bolt that fastens the ignition coil.
  • Re-connect the wire connecter to the ignition coil.