For 1990-2009 cars

Notice: Refer to Fastener Notice in the Preface section.

1. Install the right spark plugs.

Tighten
Tighten the spark plugs to 15 N·m (11 lb ft).

2. Apply a small amount of dielectric grease GM P/N 12345579, (Canadian P/N 1974984), to each spark plug boot (1) of the ignition coil assembly.
3. Carefully, install the right ignition coil assembly.
4. Install the ignition coil assembly bolts (708) and ball studs (709).

Tighten
Tighten the right ignition cassette bolts and ball studs to 10 N·m (89 lb in).

5. Install the right ignition coil assembly cover.