GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Pontiac 🢒 1999 🢒 Grand Prix 🢒 Engine 🢒 Engine Controls - 3.8L 🢒 Ignition Coil Replacement

Removal Procedure
  1. Reconnect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection in Engine Electrical.
  2. Disconnect the spark plug wires.

    3. Object Number: 12299 Size: SH
  3. Remove 2 screws (1) securing the coil (2) to the ignition control module (3).
  4. Remove the coil (1).

Installation Procedure
  1. Attach the coil assembly (2) to the ignition control module (3).

    2. Object Number: 12299 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 attaching screws (1).

    3. Tighten
    Tighten the screws to 4-5 N·m (40 lb in).

  3. Connect the spark plug wires.
  4. Reconnect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection in Engine Electrical.