C 2500 Suburban 2WD V8-454 74L VIN J SFI: Air Cleaner Restriction Indicator Description
Air Cleaner Restriction Indicator: Description and Operation
DESCRIPTION
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.
