GM Service Manual Online
For 1990-2009 cars only

Engine Coolant Air Bleed Pipe and Hole Cover Cleaning and Inspection LS3


    Object Number: 1552485  Size: SH

    Note: Do not use the engine coolant air bleed pipe seals again. Upon installation of the pipe, install NEW seals.

  1. Remove the seals (308) from the pipe.

  2. Object Number: 1552473  Size: SH
  3. Clean the pipe in solvent.
  4. Caution: Refer to Safety Glasses Warning in the Preface section.

  5. Dry the pipe with compressed air.
  6. Inspect the pipe for damaged sealing surfaces (1, 2) or restrictions within the pipe (3).