Buick Enclave Owner's Manual page 273

To inspect or replace the engine air
cleaner/filter:
1. Ventilation Tube
2. Sensor
1. Clamp
2. Screws
3. Housing Cover
4. Filter
5. Base
1. Remove the engine cover. See
2. Disconnect the cover fitting from
the ventilation tube (1).
3. Disconnect the wiring harness
connector from the sensor (2).
4. Loosen the outlet duct clamp (1).
5. Loosen the six housing cover (3)
screws (2).
6. Remove the housing cover (3)
with outlet duct.
7. Remove the filter (4) and any
loose debris that may be found
in the base (5).
8. Inspect or replace the filter (4).
9. Reverse Steps 2 6 to reinstall
the housing cover and reconnect
the electrical connector to the
sensor.
10. Reinstall the engine cover. See
Operating the engine with the air
cleaner/filter off can cause you or
.
others to be burned. The air
cleaner not only cleans the air; it
helps to stop flames if the engine
backfires. Use caution when
working on the engine and do not
drive with the air cleaner/filter off.
.