Spark Plug: Service and Repair

REMOVAL
Always remove the ignition coil assembly by grasping at the spark plug boot, turning the assembly 1/2 turn and pulling straight back in a steady motion.

1. Disconnect the negative battery cable.
2. Front Plugs - Remove the intake manifold.

Ignition Coil Removal/Installation:

3. Remove the ignitions coil.
4. Prior to removing the ignition coils, spray compressed air around the coil area and spark plug.
On 3.5L engines, it is necessary to loosen the screws by alternating back and forth. Do not lose the spacers under the coil when loosening the screws.
5. Remove spark plug.

INSTALLATION
1. To avoid cross threading, start the spark plug into the cylinder head by hand.
2. Tighten spark plugs.
3. Install ignition coil assembly onto spark plug.
4. Hand tighten coil screws.
5. Refer to the torque chart for torque specification.
6. Connect and lock the electrical connector.
7. Front Plugs - Install the intake manifold.
8. Connect the negative battery cable.