K 1500 Truck 4WD V8-4.8L VIN V (1999)
Cabin Air Filter: Description and Operation
HVAC Module Components
The filters are located in the heater and evaporator module in front of the evaporator core. The filters are accessed through a cover to the left of the
blower motor in the heater and evaporator module. These filters are designed to filter:
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Fresh air entering the vehicle.
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Recirculated air within the vehicle.
In addition to filtering duct particles out of the air, the filters are also designed to filter out unwanted odors that may enter into the vehicle.
The filter assembly consists of two separate elements. Each of these filters are identical in appearance and operation. These filters are removed and
installed one at a time through the access door. The filters may be bent slightly which will allow for easier removal and installation.
The filters have a 12 months or 20,000 km (15,000 miles) change interval. These filters may require frequent change intervals depending on driving
conditions.
