The repair and servicing process for the Camshaft begins by disconnecting the battery negative cable and continues with removal of the engine cover and air cleaner assembly and
Radiator and
A/C Condenser and engine cooling fan and valve lifters and
Timing Chain and Camshaft sprocket and balance shaft drive gear. Use three (5/16-18 x 4.0 inch) bolts to access the front holes on the Camshaft retainer before rotating and pulling the Camshaft out of the bearings when replacing the retainer bolts so you can remove the engine Camshaft. Before installing a new Camshaft the technician should change engine oil and
Oil Filter then apply gm engine oil supplement (GM P/N 1052367) or an equivalent product. Users should apply engine oil from gm p/n 12345610 or equivalent along with engine oil supplement from gm p/n 1052367 or equivalent to all Camshaft lobes and bearing journals before applying them to the bearings. Use three (5/16-18 x 4.0 inch) bolts as a support to install the engine Camshaft and afterward remove those bolts. To reuse fasteners you must apply threadlock (GM P/N 12345382 or equivalent) on the Camshaft retainer bolts before installing the retainer and its bolts to a 12 nm (106 inch lbs.) torque setting. The procedure demands installation of the balance shaft drive gear along with the Timing Chain and Camshaft sprocket and valve lifters before you can move on to installing the A/C Condenser and engine cooling fan and Radiator and perform the engine cooling system fill. Complete engine air conditioning recharging then add the engine cover while establishing the vehicle's black battery wire.