GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 1889243  Size: SH
  1. Remove the air fuel injector sight shield. Refer to Fuel Injector Sight Shield Replacement .
  2. Disconnect the engine wiring harness electrical connectors (1) from the ignition coils.

  3. Object Number: 1889253  Size: SH
  4. If removing the #6 ignition coil (1), disconnect the positive crankcase ventilation (PCV) fresh air line (2) from the camshaft cover.

  5. Object Number: 868186  Size: SH
  6. Remove the ignition coil bolts.
  7. Remove the ignition coils.

Installation Procedure


    Object Number: 860797  Size: SH
  1. Install the ignition coils.
  2. Notice: Refer to Fastener Notice in the Preface section.

  3. Install the ignition coil bolts.
  4. Tighten
    Tighten the bolts to 10 N·m (89 lb in).


    Object Number: 1889253  Size: SH
  5. If the #6 ignition coil (1) was removed, connect the PCV fresh air line (2) to the camshaft cover.

  6. Object Number: 1889243  Size: SH
  7. Connect the engine wiring harness electrical connectors (1) to the ignition coils.
  8. Install the air fuel injector sight shield. Refer to Fuel Injector Sight Shield Replacement .