
Remove the right secondary camshaft drive chain tensionerbolts.Remove the right secondary camshaft drive chaintensioner.

Remove and discard the right secondary camshaft drive chaintensioner gasket.Inspect the right secondary camshaft drive chain tensionermounting surface on the right cylinder head for burrs or anydefects that would degrade the sealing of the NEW right secondarycamshaft drive chain tensioner gasket.
Secondary Camshaft Drive Chain Shoe Removal - Right Side Valvetrain Camshaft
Secondary Air Injection Check Valve Removal - Bank 1 Emissions Air Injection#01-06-01-011H: Information on Engine Oil Consumption Guidelines - (Oct 29, 2013) Engine Lubrication
Subject:Information on Engine Oil Consumption GuidelinesModels: 2014 and Prior GM Cars and Gasoline-Powered Light Duty Trucks Under 8500-LB GVW This bulletin has been revised to add the 2013-2014 model years. Please discard CorporateBulletin Number 01-06-01-011G.All engines require oil to lubri ...