GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2002 🢒 GMC C-Series Medium Duty Truck B7 🢒 Engine 🢒 Engine Controls - 8.1L 🢒 Ignition Coil Replacement

Removal Procedure

    Object Number: 703554 Size: SH
  1. Disconnect the spark plug wires at the ignition coils. Refer to Spark Plug Wire Replacement .
  2. Disconnect the ignition coil harness connector.
  3. Remove the ignition coil mounting bolts.
  4. Remove the ignition coil.

Installation Procedure
  1. Install ignition coil.

    2. Object Number: 703554 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 12 N·m (106 lb in).

  3. Connect the ignition coil harness connector.
  4. Connect the spark plug wires at the ignition coils. Refer to Spark Plug Wire Replacement .