Intake Manifold Removal

WARNING: This page is about a different car, the 2003 GMC Sierra, 2003 GMC Cab & Chassis Sierra, 2003 Chevrolet Silverado, and 2003 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.

IMPORTANT: The intake manifold, throttle body, fuel injection rail, and fuel injectors may be removed as an assembly. If not servicing the individual components, remove the manifold as a complete assembly.

DO NOT use the intake manifold-to-cylinder head gaskets again.

Remove the positive crankcase ventilation (PCV) hose (1) and valve (2).

Fig 1: Removing Positive Crankcase Ventilation (PCV) Hose & Valve
Courtesy of GENERAL MOTORS CORP.
Remove the manifold absolute pressure (MAP) sensor (1), if required.
Remove the engine coolant air bleed clamp and hose from the throttle body.

Fig 2: Removing Manifold Absolute Pressure (MAP) Sensor
Courtesy of GENERAL MOTORS CORP.
Remove the evaporative emission (EVAP) solenoid (3), bolt (2), and isolator (1).

Fig 3: Removing Evaporative Emission (EVAP) Solenoid, Bolt & Isolator
Courtesy of GENERAL MOTORS CORP.
Remove the intake manifold bolts.
Remove the intake manifold with gaskets.

Fig 4: Removing Intake Manifold & Bolts
Courtesy of GENERAL MOTORS CORP.
Separate the intake manifold-to-cylinder head gaskets (1) from the manifold.
Discard the intake manifold gaskets.

Fig 5: Removing Intake Manifold-To-Cylinder Head Gaskets
Courtesy of GENERAL MOTORS CORP.