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Home >> GMC >> 2003 >> Safari Van Cargo, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 414 (Engine Mechanical - 4.8L, 5.3L, & 6.0L (Unit Repair)) >> Description and Operation >> Engine Component Description >> Valve Rocker Arm Cover Assemblies

Valve Rocker Arm Cover Assemblies

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The valve rocker arm covers are cast aluminum and use a pre-molded silicon gasket for sealing. Mounted to each rocker cover are the coil and bracket assemblies. Incorporated into the covers are the oil fill tube, the Positive Crankcase Ventilation (PCV) system passages, and the engine fresh air passages.

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