For 1990-2009 cars only
- Install the left spark plugs and tighten to 15 N·m (11 lb ft).
- 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 (708) and ball studs (709) to tighten to 10 N·m (89 lb in).
- Install the left ignition coil assembly cover.
Caution: Refer to Fastener Caution in the Preface section.
