Air Induction Systems

WARNING: This page is about a different car, the 2003 Pontiac Sunfire, 2003 Pontiac Grand Am, 2003 Oldsmobile Alero, and 2003 Chevrolet Cavalier. However, it is still accessible from the selected car via links, so may be relevant.

The primary function of the air intake system is to provide filtered air to the engine. The secondary function of the air intake system is to muffle air induction noise. This is achieved through the use of resonators attached to the air intake ducts. The resonators are tuned to the specific powertrain. The air induction system draws outside air through a forward mounted air cleaner. The air cleaner is remotely mounted. The air enters the engine by flowing in through the intake duct into the lower air cleaner, through the air filter, out of the upper air cleaner, through the flex duct, into the air cleaner outlet resonator, and into the throttle body and the intake manifold. The air is then directed into the intake runners, the cylinder head and into the cylinders. A remotely mounted resonator and a resonator mounted on the throttle body help to dampen the noise caused by drawing air into the engine.