Silverado Classic 1500 4WD V8-5.3L Hybrid (2007)
15. Remove the oil fill tube from the rocker cover, if required.
16. If required, clean and inspect the rocker arm cover. Refer to Valve Rocker Arm Cover Cleaning and Inspection.
Installation Procedure
Important:
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All gasket surfaces should be free of oil or other foreign material during assembly.
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DO NOT reuse the valve rocker arm cover gasket.
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If the oil fill tube has been removed from the rocker arm cover, install a NEW fill tube during assembly.
1. Lubricate the O-ring seal of the NEW oil fill tube with clean engine oil.
2. Insert the NEW oil fill tube into the rocker arm cover. Rotate the tube clockwise until locked in the proper position.
3. Install the oil fill cap into the tube .
4. Install a NEW rocker cover gasket (1) into the valve rocker arm cover lip.
