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Home >> GMC >> 2003 >> Safari Van Cargo, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 421 (Engine Mechanical - 4.8L, 5.3L, & 6.0L (On-Vehicle)) >> Repair Instructions >> Crankcase Ventilation Hoses/Pipes Replacement >> Removal Procedure

Removal Procedure

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    Fig 1: PCV Tube Valve
    GM260078Courtesy of GENERAL MOTORS CORP.
  1. Remove the engine sight shield. Refer to Engine Sight Shield Replacement (4.8L, 5.3L, and 6.0L (LQ4))  or Engine Sight Shield Replacement (6.0L (LQ9)) .
  2. Remove the positive crankcase ventilation (PCV) tube (1) from the intake manifold and valve rocker arm cover.
  3. Remove the PCV valve (2) from the PCV tube (1).
    4. Fig 2: Locating Breather Hose
    GM647795Courtesy of GENERAL MOTORS CORP.
  4. Remove the vent hose from the throttle body and the valve rocker arm cover.
  5. Replace the hose/tube as necessary.
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