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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1496 (Engine Mechanical - 5.3L) >> Repair Instructions >> On-Vehicle Repair Instructions >> Crankcase Ventilation Hoses/Pipes Replacement >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2003 GMC Envoy XL and 2003 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.
  1. Remove the positive crankcase ventilation (PCV) tube (1) and valve (2) from the intake manifold and valve rocker arm cover.
  2. Remove the PCV valve (2) from the PCV tube (1).
    Fig 1: Identifying Positive Crankcase Ventilation Hose And PCV Valve
    G02129076Courtesy of GENERAL MOTORS CORP.
  3. Remove the vent hose from the throttle body and the valve rocker arm cover.
  4. Replace the hose/tube as necessary.
    Fig 2: Removing Vent Hose From Throttle Body And Valve Rocker Arm Cover
    G02129077Courtesy of GENERAL MOTORS CORP.
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