GM Service Manual Online
For 1990-2009 cars only

The air cleaner assembly is remotely mounted. The air intake system draws outside air through the side of the air cleaner assembly and filter element of the forward mounted air cleaner. The air is then routed through the mass air flow (MAF) sensor and the throttle body to the intake manifold. The air is then directed into the intake manifold runners, through the cylinder heads and into the cylinders.

Air Cleaner Restriction Indicator

The air cleaner restriction indicator is located on the air cleaner resonator outlet duct between the mass airflow sensor (MAF) and the throttle body.