Inspect the camshaft follower roller-(1) for thefollowing:Flat spotsExcessive scoring and pittingEnsure the roller spins freelyInspect the camshaft follower valve tiparea-(2).Inspect the camshaft follower stationary hydraulic lashadjuster (SHLA) pivot area-(3).Replace the camshaft follower or followers asnecessary.
Maintenance Replacement Parts
Replacement parts identified below by name, part number, or specification can be obtainedfrom your dealer.PartGM Part NumberACDelco Part NumberEngine Air Cleaner/Filter25899727A3138CEngine Oil Filter2.4L L4 Engine12605566PF457G3.6L V6 Engine89017525PF63Passenger Compartment Air Filter20901295CF177Sp ...