GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

Note: The following procedure shows the left side service procedure, the right side service procedure is similar.


    Object Number: 1551870  Size: SH
  1. Remove the engine sight shield. Refer to Upper Intake Manifold Sight Shield Replacement.
  2. Remove the connector position assurance (CPA) retainer (3).
  3. Disconnect the ignition coil main electrical connector (4).

  4. Object Number: 1411963  Size: SH
  5. Remove the spark plug wire(s) (724) from the ignition coil(s), as necessary.

  6. Object Number: 1402020  Size: SH
  7. Remove the ignition coil bolts (723), as necessary.
  8. Remove the ignition coil(s) (722), as necessary.

Installation Procedure


    Object Number: 1402020  Size: SH
  1. Apply threadlock GM P/N 12345382 (Canadian P/N 10953489) or equivalent to the threads of the ignition coil bolts.
  2. Install the ignition coil(s) (722), as necessary.
  3. Caution: Refer to Fastener Caution in the Preface section.

  4. Install the ignition coil bolts (723), as necessary.
  5. Tighten
    Tighten the bolts to 8 N·m (71 lb in).


    Object Number: 1411963  Size: SH
  6. Install the spark plug wire(s) (724) to the ignition coil(s), as necessary.

  7. Object Number: 1551870  Size: SH
  8. Connect the left ignition coil main electrical connector (4).
  9. Install the CPA retainer (3).
  10. Install the engine sight shield. Refer to Upper Intake Manifold Sight Shield Replacement.