GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Buick 🢒 2007 🢒 Lucerne 🢒 Engine 🢒 Engine Mechanical - 3.8L 🢒 Engine Block Plug Removal

    Object Number: 589370 Size: SH
  1. Remove the threaded coolant jacket plugs.

    2. Object Number: 1646930 Size: SH
  2. Remove the threaded engine block heater.

    3. Object Number: 26198 Size: SH
  3. Remove the remaining plugs using the following procedure.
    4. 3.1. Obtain a suitable self-threading screw.
    3.2. Drill a hole into the plug.
    3.3. Install the self-threading screw.
    3.4. Use the screw to pry out the plug.