GM Service Manual Online
For 1990-2009 cars only

Air Induction System (VIN K) and (VIN 1)

The air induction system provides contaminant and sound filtration of the outside air as it is drawn into the engine. A remotely mounted air cleaner prevents contaminants in the air from entering the engine. The air cleaner assembly also acts as a resonator in order to reduce the air induction noise. The filtered air then enters the engine by flowing through the air intake duct, through the throttle body, into the intake manifold, through the cylinder head intake ports, and into the cylinders.