Removal ProcedureRelieve the high side fuel system pressure. Refer toFuel Pressure Relief.
Note:The fuel injectors have an alignment feature, note theposition of the injectors alignment for installation.
Remove the fuel injection fuel rail assembly. Refer toFuel Injector and Fuel Rail Replacement.
Remove and discard the fuel injectorretainers-(1).Clean and inspect the fuel rail and injectors. Refer toFuel Rail and Injectors Cleaning and Inspection.Installation Procedure

Install NEW fuel injector retainers-(1).
Note:The fuel injectors have an alignment feature and must bereinstalled as noted during removal.
Install the fuel injection fuel rail assembly. Refer toFuel Injector and Fuel Rail Replacement. Intake Manifold Replacement Intake and Forced Induction Intake Manifold
Intake Manifold Replacement Intake and Forced Induction Intake Manifold Valve Rocker Arm Replacement - Left Side Valvetrain Valve Actuating Assembly Rocker Arms
Valve Rocker Arm Replacement - Left Side Valvetrain Valve Actuating Assembly Rocker ArmsPrimary Timing Chain Guide Installation - Upper Valvetrain Valvetrain Timing Timing Belt/Chain
   Ensure the upper primary camshaft drive chainguide-(3) is being installed.Install the upper primary camshaft drive chain guides.Caution:Refer toFastener Caution.Install the upper primary camshaft drive chain guide boltsand tighten to25-Y(18-lb-ft). ...