GM Service Manual Online
For 1990-2009 cars only

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
  5. Remove the ignition coil assembly bolts.
  6. Remove the ignition coil assembly.

  7. Object Number: 1672556  Size: SH
  8. Disconnect the individual ignition coil electrical connector (3), as required.
  9. Remove the individual ignition coil bolt (1), as required.
  10. 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.

  4. Install the ignition coil assembly bolts.
  5. Tighten
    Tighten the bolts to 10 N·m (89 lb in).


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

  7. Object Number: 1672555  Size: SH
  8. Install the ignition coil (2), as required.
  9. Install the individual ignition coil bolt (1), as required.
  10. Tighten
    Tighten the bolt to 10 N·m (89 lb in).

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