Removal Procedure

Open the hood.
Relieve the fuel system pressure. Refer to Fuel Pressure Relief .
Disconnect the battery negative cable. Refer to Battery Negative Cable Disconnection and Connection .
Remove the air cleaner outlet duct. Refer to Air Cleaner Outlet Duct Replacement (L5Q) .
Disconnect any electrical connectors as needed.
Remove the manifold absolute pressure sensor. Refer to Manifold Absolute Pressure Sensor Replacement .
Remove the evaporative emission canister purge solenoid valve. Refer to Evaporative Emission Canister Purge Solenoid Valve Replacement .
Disconnect the fuel feed line quick connect fitting from the fuel rail.
Fig 1: Identifying Intake Manifold And Bolts
Courtesy of GENERAL MOTORS COMPANY

NOTE:
Bolt retainers may keep the bolts in position on the assembly.

Remove the intake manifold bolts (1).
Remove the camshaft cover. Refer to Camshaft Cover Removal (L5Q) .
Fig 2: Identifying Intake Manifold, Throttle Body Assembly, Fuel Injector Fuel Rail Assembly And Gasket
Courtesy of GENERAL MOTORS COMPANY

Remove the intake manifold (3) with throttle body assembly (1) and fuel injector fuel rail assembly (2) from the engine.
Discard the intake manifold gasket (4).
Fig 3: Identifying Intake Manifold Assembly Components
Courtesy of GENERAL MOTORS COMPANY

Remove the throttle body assembly bolts (1) and remove the throttle body assembly (2) from the intake manifold.
Remove the fuel injector fuel rail assembly bolts (3) and remove the fuel injector fuel rail assembly from the intake manifold.
Remove the intake manifold (5).
Transfer parts as necessary.