GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Buick 🢒 2006 🢒 Lucerne 🢒 Engine 🢒 Engine Controls - 4.6L 🢒 Ignition Coil Replacement - Bank 2

Removal Procedure

    Object Number: 1662120 Size: SH
  1. Remove the fuel injector sight shield. Refer to Fuel Injector Sight Shield Replacement .
  2. If servicing the ignition coil assembly, perform the following steps, if servicing an individual ignition coil proceed to step 7.
  3. Disconnect the engine harness electrical connector (3) from the ignition coil assembly.

    4. Object Number: 1672635 Size: SH
  4. Remove the ignition coil assembly bolts.
  5. Remove the ignition coil assembly.

    6. Object Number: 1672556 Size: SH
  6. Disconnect the individual ignition coil electrical connector (3), as required.
  7. Remove the individual ignition coil bolt (1), as required.
  8. Remove the ignition coil (2), as required.

Installation Procedure

    Object Number: 1672635 Size: SH
  1. If servicing the ignition coil assembly, perform the following steps, if servicing an individual ignition coil proceed to step 5.
  2. Install the ignition coil assembly.

    3. Notice: Refer to Fastener Notice in the Preface section.

  3. Install the ignition coil assembly bolts.

    4. Tighten
    Tighten the bolts to 10 N·m (89 lb in).


    Object Number: 1662120 Size: SH
  4. Connect the engine harness electrical connector (3) to the ignition coil assembly.

    5. Object Number: 1672555 Size: SH
  5. Install the ignition coil (2), as required.
  6. Install the individual ignition coil bolt (1), as required.

    7. Tighten
    Tighten the bolt to 10 N·m (89 lb in).

  7. Connect the individual ignition coil electrical connector (3), as required.
  8. Install the fuel injector sight shield. Refer to Fuel Injector Sight Shield Replacement .