GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

  1. Remove the ignition coils. Refer to Ignition Coil Replacement.

  2. Object Number: 2016644  Size: SH
  3. Using a 14 mm spark plug wrench, remove the 4 spark plugs (1, 2, 3, 4).

Installation Procedure

    Caution: Refer to Fastener Caution in the Preface section.


    Object Number: 2016644  Size: SH
  1. Using a 14 mm spark plug wrench, install the 4 spark plugs (1, 2, 3, 4) and tighten to 20 N·m (15 lb ft).
  2. Install the ignition coils. Refer to Ignition Coil Replacement.