GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

  1. Remove the air cleaner outlet resonator. Refer to Air Cleaner Outlet Resonator Replacement.

  2. Object Number: 725541  Size: SH
  3. Disconnect the ignition coil connectors (1) from the ignition coils.
  4. Remove the retaining bolts (2) from the ignition coils.

  5. Object Number: 725545  Size: SH
  6. Remove the ignition coils (1) from the engine.

Installation Procedure


    Object Number: 725545  Size: SH

    Note: Make sure that the ignition coil seals are properly seated to the valve cover.

  1. Install the ignition coil (1).
  2. Caution: Refer to Fastener Caution in the Preface section.


    Object Number: 725541  Size: SH
  3. Install the ignition coil retaining bolts (2) and tighten to 10 N·m (89 lb in).
  4. Replace the ignition coil connectors (1).
  5. Install the air cleaner outlet resonator. Refer to Air Cleaner Outlet Resonator Replacement.