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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> Engine Mechanical - 4.3L (On-Vehicle) >> Repair Instructions >> Positive Crankcase Ventilation (PCV) Valve Replacement >> Removal Procedure

Removal Procedure

  1. Disconnect the positive crankcase ventilation (PCV) valve hose assembly from the intake manifold.
  2. Disconnect the PCV valve hose from the valve rocker arm cover.
    Fig 1: PCV Valve Hose Assembly
    G01660988Courtesy of GENERAL MOTORS CORP.
  3. Turn and remove the PCV valve cover from the upper intake manifold.
  4. Remove and discard the seal (O-ring).
    Fig 2: PCV Valve & Seal
    G01660989Courtesy of GENERAL MOTORS CORP.
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