Engine Air Cleaner/Filter - Cadillac 2007 STS Owner's Manual

Engine Air Cleaner/Filter

4.6L V8 Engine shown, 3.6L V6 Engine similar
The engine air cleaner/filter is in the engine
compartment on the driver's side of the vehicle,
near the front. See Engine Compartment Overview
on page 373 for more information on locating
the air cleaner/filter.
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When to Inspect 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 (83 000 km) interval. See
Scheduled Maintenance on page 505 for more
information. If you are driving in 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 filter
from the vehicle and lightly shake the filter to
release loose dust and dirt. If the filter remains
caked with dirt, a new filter is required.
To inspect or replace the filter in the 3.6L V6 or
4.6L V8 engines, do the following:
1. Remove the two screws located on the top of
the cover.
2. Disconnect the coolant recovery hose so that
it is not going across the top of the engine air
cleaner/filter.