GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 HUMMER 🢒 2009 🢒 H3 🢒 Engine 🢒 Engine Mechanical - 3.7L 🢒 Ignition Coil Replacement

Removal Procedure
  1. Remove the air cleaner resonator and outlet duct. Refer to Air Cleaner Resonator and Outlet Duct Replacement.

    2. Object Number: 1350694 Size: SH
  2. Disconnect the ignition coil connectors (3) from the ignition coils (4).

    3. Object Number: 858168 Size: SH
  3. Remove the ignition coil bolts.
  4. Remove the ignition coils from the camshaft cover.

Installation Procedure

    Object Number: 858168 Size: SH

    Note: Ensure the ignition coil seals are properly seated to the camshaft cover.

  1. Install the ignition coils into the camshaft cover.

    2. Caution: Refer to Fastener Caution in the Preface section.

  2. Install the ignition coil bolts.

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


    Object Number: 1350694 Size: SH
  3. Connect the ignition coil connectors (3) to the ignition coils (4).
  4. Install the air cleaner resonator and outlet duct. Refer to Air Cleaner Resonator and Outlet Duct Replacement.