GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 2016546  Size: SH
  1. Remove the ignition coils. Refer to Ignition Coil Replacement.

  2. Object Number: 2016550  Size: SH
  3. Remove the 4 spark plugs (1, 2, 3, 4).

Installation Procedure

    Caution: Refer to Fastener Caution in the Preface section.


    Object Number: 2016550  Size: SH
  1. Install the 4 spark plugs and tighten to 19 N·m (14 lb ft).
  2. Install the ignition coils. Refer to Ignition Coil Replacement.