Check spark plugs for the following:
- Broken insulator
- Worn electrode
- Carbon deposits
- Damaged or broken gasket
- Condition of the porcelain insulator at the tip of the spark plug
- Replace as necessary
Check the following:
For iridium / platinum spark plugs, replace them with specified new plugs, if any abnormality is found. For spark plug other than iridium / platinum, clean, adjust or replace them with specified new plugs, if any abnormality is found.
Spark plug air gap: -a- 0.040-0.043 inch (1.0-1.1 mm)
Spark plug type:
Removal & Installation
- Before servicing the vehicle, refer to the Precautions Section.
Remove spark plug wire from the spark plug.
NOTEPull on the spark plug wire boot when removing the spark plug wire to avoid damage to the wire.
- Clean loose debris away from area of spark plug to keep contaminants from entering engine when spark plug is removed.
- Remove the spark plug using a spark plug socket and wrench.
- Remove engine cover from cylinder head cover.
Remove ignition coil by performing the following
- Disconnect ignition coil coupler.
- Remove ignition coil bolt (1).
- Pull out ignition coil.
Remove the spark plug (2).
- Install spark plug (2). Tighten to 18 ft. lbs. (25 Nm).
Install ignition coil (1) by performing the following:
- Install the ignition coil (2) securely.
- Tighten ignition coil bolt. Then connect the ignition coil coupler.
- Install engine cover to cylinder head cover.
- Be sure the spark plug gap is set to 0.030 inch (0.763mm).
- Carefully install the spark plug and tighten to 20-22 ft. lbs. (27-29 Nm).
- Be sure the spark plug gap is set to 0.028 in. (0.712mm).
- Carefully install the spark plug and tighten 18 ft. lbs. (24 Nm).