GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 1890099  Size: SH
  1. Remove the air cleaner outlet duct. Refer to Air Cleaner Outlet Duct Replacement.
  2. Disconnect the engine wiring harness electrical connectors (1) from the ignition coil(s) (2).

  3. Object Number: 1578474  Size: SH
  4. Remove the ignition coil bolt(s).
  5. Remove the ignition coil(s).

Installation Procedure


    Object Number: 1578474  Size: SH
  1. Install the ignition coil(s).
  2. Caution: Refer to Fastener Caution in the Preface section.

  3. Install the ignition coil bolt(s) and tighten to 10 N·m (89 lb in).

  4. Object Number: 1890099  Size: SH
  5. Connect the engine wiring harness electrical connector(s) (1) to the ignition coil(s) (2).
  6. Install the air cleaner outlet duct. Refer to Air Cleaner Outlet Duct Replacement.