GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2007 🢒 Monte Carlo 🢒 Engine 🢒 Engine Controls and Fuel - 3.9L 🢒 Ignition Coil Replacement

Removal Procedure

    Object Number: 1608869 Size: SH
  1. Remove the intake manifold cover. Refer to Intake Manifold Cover Replacement .
  2. Disconnect the manifold absolute pressure (MAP) sensor electrical connector (1).
  3. Disconnect the ignition coil electrical connector (6).

    4. Object Number: 1608802 Size: SH
  4. Disconnect the left side spark plug wires from the ignition coil.

    5. Object Number: 1608803 Size: SH
  5. Disconnect the right side spark plug wires from the ignition coil.

    6. Object Number: 1646089 Size: SH
  6. Remove the ignition coil bolts/nuts.
  7. Remove the ignition coil.
  8. Remove the ignition coil studs, if necessary.

Installation Procedure

    Notice: Refer to Fastener Notice in the Preface section.


    Object Number: 1646089 Size: SH
  1. Install the ignition coil studs, if necessary.

    2. Tighten
    Tighten the studs to 25 N·m (15 lb ft).

  2. Install the ignition coil bolts/nuts.

    3. Tighten
    Tighten the bolts/nuts to 25 N·m (15 lb ft).


    Object Number: 1608803 Size: SH
  3. Connect the right side spark plug wires to the ignition coil.

    4. Object Number: 1608802 Size: SH
  4. Connect the left side spark plug wires to the ignition coil.

    5. Object Number: 1608869 Size: SH
  5. Connect the ignition coil electrical connector (6).
  6. Connect the MAP sensor electrical connector (1).
  7. Install the intake manifold cover. Refer to Intake Manifold Cover Replacement .