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Home >> GMC >> 2003 >> Safari Van Cargo, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 414 (Engine Mechanical - 4.8L, 5.3L, & 6.0L (Unit Repair)) >> Repair Instructions >> Coolant Air Bleed Pipe Cleaning and Inspection

Coolant Air Bleed Pipe Cleaning and Inspection

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IMPORTANT: Do not reuse the engine coolant air bleed pipe and cover gaskets. Upon installation of the pipe and covers, install NEW gaskets.
  1. Remove the sealing gaskets from the pipe.
  2. Remove the sealing gaskets from the covers.
    Fig 1: Coolant Air Bleed Pipe Sealing Gasket
    G01674839Courtesy of GENERAL MOTORS CORP.
  3. Clean the pipe (2), hose (1), and covers in solvent.
    CAUTION: Refer to SAFETY GLASSES CAUTION in Cautions and Notices.
  4. Dry the pipe and covers with compressed air.
  5. Inspect the pipe and covers for damage or restrictions.
  6. Inspect the gasket and hose sealing surfaces for damage.
  7. Inspect the hose (1) for restrictions, cracking or wear.

    The hose may be reused if not damaged.

    Fig 2: Coolant Air Bleed Hose & Pipe
    G01674840Courtesy of GENERAL MOTORS CORP.
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