For 1990-2009 cars only
- Install the left spark plugs.
- 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.
- Carefully, install the left ignition coil assembly.
- Install the left ignition coil assembly bolts.
- Install the left ignition coil assembly cover.
Notice: Refer to Fastener Notice in the Preface section.
Tighten
Tighten the spark plugs to 15 N·m (11 lb ft).
Tighten
Tighten the left ignition cassette bolts to 10 N·m (89 lb in).
