GM Service Manual Online
For 1990-2009 cars only

Spark Plug LN2

Removal Procedure

  1. Turn the ignition key OFF.
  2. Remove foreign material from around the spark plug holes.

  3. Object Number: 106514  Size: SH
  4. Remove the spark plug using a spark plug socket.

Installation Procedure

  1. Adjust the spark plug gap using a round wire type spark plug gap gauge. While gapping the plug be sure to keep the platinum pads aligned to ensure maximum plug life.

  2. Object Number: 106514  Size: SH
  3. Install new plugs and tighten properly.
  4. Reapply dielectric lubricant to the insulator boot.
  5. Tighten
    Tighten to 18 N·m (13 lb ft).

    Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

Spark Plug L82

Removal Procedure

  1. Turn the ignition key OFF.
  2. Remove foreign material from around the spark plug holes.

  3. Object Number: 97626  Size: SH
  4. Remove the spark plug using a spark plug socket.

Installation Procedure

  1. Adjust the spark plug gap using a round wire type spark plug gap gauge. While gapping the plug be sure to keep the platinum pads aligned to ensure maximum plug life.

  2. Object Number: 97626  Size: SH
  3. Install new plugs and tighten properly.
  4. Reapply dielectric lubricant to the insulator boot.
  5. Tighten
    Tighten to 18 N·m (13 lb ft).

    Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.