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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 638 (Engine Mechanical - 4.0L (Unit Repair)) >> Repair Instructions >> Engine Block Cleaning and Inspection -Upper >> Cleaning Procedure

Cleaning Procedure

WARNING: This page is about a different car, the 2002 Oldsmobile Aurora and 2001 Oldsmobile Aurora. However, it is still accessible from the selected car via links, so may be relevant.
  1. Remove any old thread sealant and gasket material or sealant.
  2. Clean all the following areas with solvent:
    • Sealing surfaces
    • Cooling passages
    • Oil passages
    • Bearing journals
  3. Clean all threaded and through holes with solvent.
    WARNING: Wear safety glasses in order to avoid eye damage.
  4. Dry the upper engine block with compressed air.