Warning: Refer to Battery Disconnect Warning in the Preface section.
Note: If removing the upper intake manifold, plug the lower manifold openings to prevent dirt and other contaminants from entering.
Caution: Clean the spark plug recess area before removing the spark plug. Failure to do so could result in engine damage because of dirt or foreign material entering the cylinder head, or by the contamination of the cylinder head threads. The contaminated threads may prevent the proper seating of the new plug. Use a thread chaser to clean the threads of any contamination.
Note: The ignition coil bolts are captive. Do not attempt to remove the bolts from the ignition coil.
Note: Take care the spring does not become dislodged as the boot is removed. To aid removal of the boot, use a blunt instrument to lift the boot edge away from the coil insulator and spray a release agent between the boot and the coil insulator.
Caution: Refer to Fastener Caution in the Preface section.
Note: Ensure the ignition coil is fully seated before tightening the attaching bolt to the specified torque.