Remove the left secondary camshaft drive chain tensionerbolts.Remove the left secondary camshaft drive chaintensioner.
Remove and discard the left secondary camshaft drive chaintensioner gasket.Inspect the left secondary camshaft drive chain tensionermounting surface on the left cylinder head for burrs or any defectsthat would degrade the sealing of the NEW left secondary camshaftdrive chain tensioner gasket.
#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 ...