For 1990-2009 cars only

Makes 🢒 Chevrolet 🢒 1999 🢒 Express 🢒 Engine 🢒 Engine Controls - 4.3L 🢒 Air Intake System Description

Air Intake System Description for Chevrolet Express 1999

In order to route the cool air from the exterior of the engine compartment to the intake manifold, the system uses an air intake system. A filter is incorporated into the system in order to keep the dirt from entering the engine.


(1)	Reset Button
(2)	Window

Air Cleaner Restriction Indicator

The air cleaner restriction indicator is located on the intake duct between the air cleaner assembly and the mass air flow (MAF) sensor.

If the area inside of the clear section is green, no air filter service is required. If the area inside the clear section is orange and Change Air Filter appears, replace the air filter.