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Home >> Chevrolet >> 2004 >> Avalanche 2500 >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 11 (Engine Mechanical (Introduction) 4.8L, 5.3L & 6.0L) >> 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 left cover is the positive crankcase ventilation (PCV) system passage. Incorporated into the right cover is the oil fill tube and engine fresh air passage.

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