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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1619 (Engine Mechanical - 4.8L, 5.3L & 6.0L) >> Repair Instructions >> Off-Vehicle Repair Instructions >> Coolant Air Bleed Pipe Cleaning and Inspection

Coolant Air Bleed Pipe Cleaning and Inspection

WARNING: This page is about a different car, the 2003 GMC Sierra, 2003 GMC Cab & Chassis Sierra, 2003 Chevrolet Silverado, and 2003 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
IMPORTANT: Do not use the engine coolant air bleed pipe and cover gaskets again. 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: Removing Sealing Gaskets
    G02107148Courtesy of GENERAL MOTORS CORP.
  3. Clean the pipe (2), hose (1), and covers in solvent.
    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 gasket and hose sealing surfaces for damage.
  7. Inspect the hose (1) for restrictions, cracking or wear.

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

    Fig 2: Clean & Inspect Pipe & Hose
    G02107149Courtesy of GENERAL MOTORS CORP.
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