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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 >> Intake Manifold Cleaning and Inspection >> 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.

Important:  Do not reuse the intake manifold-to-cylinder head sealing gaskets.

  1. Remove any remaining gasket and/or gasket material from the intake manifold.
  2. Clean the following intake manifold areas in solvent.
    • Intake manifold gasket grooves
    • Intake manifold passages
    • PCV vacuum hose passage
    • Vacuum hose fitting passage
    WARNING: Wear safety glasses in order to avoid eye damage.
  3. Dry the intake manifold with compressed air.
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