GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Generic 🢒 2003 🢒 Unit Repair 🢒 Engine 🢒 Engine Controls - 4.8L, 5.3L, and 6.0L 🢒 Ignition Coil Replacement

Removal Procedure

    Object Number: 344169 Size: SH
  1. Disconnect the spark plug wires at the ignition coils.

    2. Object Number: 339299 Size: SH
  2. Disconnect the ignition coil harness connector.

    3. Object Number: 344167 Size: SH
  3. Remove the ignition coil mounting bolts.

    4. Object Number: 339300 Size: SH
  4. Remove the ignition coil.

Installation Procedure

    Object Number: 339300 Size: SH
  1. Install the ignition coil to the bracket.

    2. Object Number: 344167 Size: SH

    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.

  2. Install the ignition coil mounting bolts.

    3. Tighten
    Tighten the ignition coil mounting bolts to 8 N·m (71 lb in).


    Object Number: 339299 Size: SH
  3. Connect the ignition coil harness connector.

    4. Object Number: 344169 Size: SH
  4. Connect the spark plug wires at the ignition coils.