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Home >> Chevrolet >> 2012 >> Suburban C2500 >> Repair and Diagnosis >> External Pages >> Different car >> Section 1902 (Engine Mechanical - Hybrid (LZ1) - Repair Instructions - On Vehicle) >> Repair Instructions - On Vehicle >> Positive Crankcase Ventilation Hose/Pipe/Tube Replacement >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2012 GMC Yukon, 2012 Chevrolet Tahoe, and 2012 Cadillac Escalade. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: View Of PCV Hose
    GM1696791Courtesy of GENERAL MOTORS COMPANY
  1. Remove the intake manifold sight shield. Refer to Upper Intake Manifold Sight Shield Replacement .
  2. Remove the positive crankcase ventilation (PCV) dirty air hose from the intake manifold fitting and left valve rocker arm cover, if required.
    3. Fig 2: View Of PCV Tube
    GM1696754Courtesy of GENERAL MOTORS COMPANY
  3. Remove the PCV fresh air tube (1) from the air cleaner outlet duct, if required.
    4. Fig 3: View Of PCV Tube & Right Valve Rocker Arm Cover Fitting
    GM1696757Courtesy of GENERAL MOTORS COMPANY
  4. Remove the PCV fresh air tube (1) from the right valve rocker arm cover fitting (2), if required.
  5. Remove the appropriate PCV hose/tube from the vehicle.
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