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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1444 (Engine Mechanical - 5.3L (Lm4)) >> Repair Instructions >> On-Vehicle Repair Instructions >> Crankcase Ventilation Hoses/Pipes Replacement >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2004 GMC Envoy XUV, 2004 GMC Envoy XL, 2004 Chevrolet TrailBlazer, and 2004 Buick Rainier. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: View Of PCV Foul Air Hose
    GM1386395Courtesy of GENERAL MOTORS CORP.
  1. Remove the positive crankcase ventilation (PCV) foul air hose from the intake manifold and valve rocker arm cover.
  2. Remove the air cleaner resonator outlet duct. Refer to Air Cleaner Resonator Outlet Duct Replacement in Engine Controls.
    3. Fig 2: Locating Breather Hose
    GM647795Courtesy of GENERAL MOTORS CORP.
  3. Remove the PCV fresh air hose from the throttle body and the valve rocker arm cover.
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