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.
#09-00-89-016C: Warranty Administration - Labor Operation 0600014 - Suspected Tampering or Vehicle Modifications - (May 6, 2013)
Subject:Warranty Administration – Labor Operation 0600014 – Suspected Tampering or VehicleModificationsModels: 2014 and Prior GM Passenger Cars and Trucks This bulletin is being revised to add the 2014 model year and update the labor operation.Please discard Corporate Bulletin Number 09-00-8 ...