
Observe the markings on the bearing caps. Each bearing cap is marked in order to identifyits location. The markings have the following meanings:The raised feature must always be oriented toward the center of the cylinder head.The I indicates the intake camshaft.The E indicates the exhaust camshaft.The number indicates the journal position from the front of the engine.

Remove the camshaft bearing cap bolts.Remove the camshaft bearing caps.

Important:Mark the camshafts upon removal to ensure installation is in the correct position.
Remove the camshafts.
Exhaust System Description Exhaust
Oil Filter Adapter Replacement Engine Lubrication Oil FilterData Link Communications Description and Operation
Note:This is an overview of different serial data buses used by GM devices to communicatewith each others. UseData Communication Schematicsto find out which serial data buses are configured for a specific vehicle.Circuit DescriptionThere are many components in a vehicle that rely on information from ...