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Coolant Air Bleed Pipe Cleaning and Inspection

WARNING: This page is about a different car, the 2007 Hummer H2. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: View Of Coolant Air Bleed Pipe Seal
    GM1552485Courtesy of GENERAL MOTORS CORP.
    IMPORTANT: Do not use the engine coolant air bleed pipe and cover seals again. Upon installation of the pipe and covers, install NEW seals.
  1. Remove the seals (308) from the pipe.
  2. Remove the seals (308) from the covers.
    3. Fig 2: View Of Engine Coolant Air Bleed Pipe, Hose & Clamps
    GM1277104Courtesy of GENERAL MOTORS CORP.
  3. Clean the pipe (307), hose (311), and covers in solvent.
    4. CAUTION: Refer to Safety Glasses Caution .
  4. Dry the pipe and covers with compressed air.
  5. Inspect the pipe and covers for damage or restrictions.
  6. Inspect the sealing surfaces for damage.
  7. Inspect the hose (311) for restrictions, cracking or wear.

    The hose may be used again if it is not damaged.

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