For 1990-2009 cars

### Removal Procedure

Notice: This engine has aluminum cylinder heads. Do not remove the spark plugs from a hot engine, allow it to cool first. Removing the spark plugs from a hot engine may cause spark plug thread damage or cylinder head damage.

1. Remove the ignition coils. Refer to Ignition Coil Replacement.

Important: Make sure that any water and/or debris is blown out of the spark plug holes prior to removing the spark plugs.

2. Remove the spark plugs using a 5/8 inch spark plug socket.

### Installation Procedure

Notice: Refer to Fastener Notice in the Preface section.

Notice: Do not coat spark plug threads with anti-seize compound. If anti-seize compound is used and spark plugs are over-torqued, damage to the cylinder head threads may result.

1. Install the spark plugs.

Specification
The spark plug gap is 1.00 mm (0.040 in).

Tighten
Tighten the plugs to 20 N·m (15 lb ft).

2. Apply dielectric compound to the spark plug boots and make sure no corrosion is present.
3. Install the ignition coils. Refer to Ignition Coil Replacement.