GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 1890099  Size: SH
  1. Remove the intake manifold cover. Refer to Intake Manifold Cover 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

    Notice: Refer to Fastener Notice in the Preface section.


    Object Number: 1578474  Size: SH
  1. Install the ignition coil(s).
  2. Install the ignition coil bolt(s).
  3. Tighten
    Tighten the bolt(s) to 10 N·m (89 lb in).


    Object Number: 1890099  Size: SH
  4. Connect the engine wiring harness electrical connector(s) (1) to the ignition coil(s) (2).
  5. Install the intake manifold cover. Refer to Intake Manifold Cover Replacement.