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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> External Pages >> Different car >> Section 528 (Engine Mechanical - 5.3L, 6.0L, 6.2L - Repair Instructions - Off Vehicle) >> Repair Instructions - Off Vehicle >> Engine Coolant Air Bleed Pipe and Hole Cover Cleaning and Inspection

Engine Coolant Air Bleed Pipe and Hole Cover Cleaning and Inspection

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    Fig 1: View Of Coolant Air Bleed Pipe Seal
    GM1552485Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    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 and covers.
  2. Fig 2: View Of Coolant Air Bleed Pipe Components
    GM1658230Courtesy of GENERAL MOTORS COMPANY
  3. Clean the pipe and covers in solvent.
  4. Dry the pipe and covers with compressed air.
  5. Inspect the pipe and covers for restrictions within the pipe (1) or damaged sealing surfaces (2, 3).