Buick LaCrosse Owner's Manual page 276

1. Electrical Connector
2. Air Duct Clamp
3. Screws
To inspect or replace the engine air
cleaner/filter:
1. Open the hood. See
.
2. Disconnect the outlet duct by
loosening the air duct clamp (2).
3. Disconnect the electrical
connector (1).
4. Remove the screws (3) on top of
the engine air cleaner/filter
housing.
5. Lift the filter cover housing away
from the engine air cleaner/filter
housing.
6. Pull out the filter.
7. Inspect or replace the engine air
cleaner/filter.
8. Reverse Steps 2 4 to reinstall
the filter cover housing.
1. Electrical Connector
2. Air Duct Clamp
3. Screws
4. Secondary Air Hose
To inspect or replace the engine air
cleaner/filter:
1. Open the hood. See
.
2. Disconnect the outlet duct by
loosening the air duct clamp (2).
3. Disconnect the electrical
connector (1).
4. Remove the screws (3) on top of
the engine air cleaner/filter
housing.
5. Disconnect the secondary air
hose (4).
6. Lift the filter cover housing away
from the engine air cleaner/filter
housing.
7. Pull out the filter.
8. Inspect or replace the engine air
cleaner/filter.