GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Buick 🢒 2008 🢒 Lucerne 🢒 Engine 🢒 Engine Mechanical - 4.6L 🢒 Fuel Injector Sight Shield Replacement

Removal Procedure

    Object Number: 1661316 Size: SH
  1. Grasp the intake manifold sight shield cover at the left side, lift up in order to disengage the cover from the ball stud.
  2. Grasp the intake manifold sight shield cover at the right side, lift up in order to disengage the cover from the ball stud.
  3. Remove the intake manifold sight shield cover from under the tab on the secondary air injection (AIR) check valve bracket.
  4. Remove the intake manifold sight shield cover.

    5. Object Number: 1661329 Size: SH
  5. If necessary to remove the rear intake manifold sight shield perform the following steps, remove the AIR check valve. Refer to Secondary Air Injection Check Valve Replacement.
  6. Grasp the rear intake manifold sight shield cover and lift up in order to disengage the cover from the ball studs.
  7. Remove the rear intake manifold sight shield cover.

Installation Procedure

    Object Number: 1661329 Size: SH
  1. If necessary to install the rear intake manifold sight shield perform the following steps, position the rear intake manifold sight shield cover over the ball studs.
  2. Press down on the rear intake manifold sight shield cover over the balls stud in order to engage the cover to the ball studs.
  3. Install the AIR check valve. Refer to Secondary Air Injection Check Valve Replacement.

    4. Object Number: 1661316 Size: SH
  4. Install the intake manifold sight shield cover under the tab on the AIR check valve bracket.
  5. Position the intake manifold sight shield cover over the ball studs.
  6. Press down on the intake manifold sight shield cover over the balls stud in order to engage the cover to the ball studs.