CHEVROLET 2009 Suburban - Manual (Page 420)

Engine Air Cleaner/Filter
See Engine Compartment Overview on page 5-14 for
the location of the engine air cleaner/filter.
Inspect the air cleaner/filter at the Maintenance II
intervals and replace it at the first oil change after each
50,000 mile (80 000 km) interval. See Scheduled
Maintenance on page 6-4 for more information. If driving
on dusty/dirty conditions, inspect the filter at each engine
oil change.
How to Inspect the Engine Air
Cleaner/Filter
To inspect the air cleaner/filter, remove the engine air
cleaner/filter from the vehicle by following Steps 1
through 6. When the engine air cleaner/filter is removed,
lightly shake it to release loose dust and dirt. If the engine
air cleaner/filter remains caked with dirt, a new filter is
required.
Replacing the Engine Air Cleaner/Filter
1. Locate the air cleaner/
filter assembly. See
Engine Compartment
Overview on
page 5-14.
2. Loosen the four screws on the cover of the housing
and lift up the cover.
5-20