GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Buick 🢒 2006 🢒 Lucerne 🢒 Preface 🢒 Cautions and Notices 🢒 Intake Manifold Cover Replacement

Removal Procedure

    Object Number: 1685080 Size: SH
  1. Clean the area around the oil fill tube prior to removing the tube in order to prevent contaminants from falling into the valve rocker cover opening.
  2. Twist the oil fill tube counterclockwise in order to unlock the tube from the valve rocker cover.
  3. Lift the front of the intake manifold cover up and slide the tab out of the engine bracket.
  4. Replace the oil fill tube into the valve rocker cover.

Installation Procedure

    Object Number: 1685080 Size: SH
  1. Remove the oil fill tube from the valve rocker cover.
  2. Insert the tab on the rear of the intake manifold cover through the engine bracket.
  3. Align the hole in the intake manifold cover with the oil fill tube hole in the valve rocker cover.
  4. Insert the oil fill tube into the valve rocker cover and twist clockwise in order to lock the detent on the tube into the notch in the cover.