Buick Enclave manuals

Buick Enclave: Engine Air Cleaner/Filter

When to Inspect the Engine Air Cleaner/Filter

Inspect the air cleaner/filter at the scheduled maintenance intervals and replace it at the first oil change after each 80 000 km (50,000 mile) interval. See Maintenance Schedule  for more information.

If you are driving in dusty/dirty conditions, inspect the filter at each engine oil change.

See Engine Compartment Overview  for the location of the engine air cleaner/filter.

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 (away from vehicle) to release loose dust and dirt. If the filter remains covered with dirt, a new filter is required.

To inspect or replace the engine air cleaner/filter:

1. Remove the engine cover.

See Engine Cover

A. Ventilation Tube

A. Ventilation Tube
B. Sensor

2. Disconnect the cover fitting from the ventilation tube (A).
3. Disconnect the wiring harness connector from the sensor (B).

A. Clamp

A. Clamp
B. Screws
C. Housing Cover
D. Filter
E. Base

4. Loosen the outlet duct clamp (A).
5. Loosen the six housing cover (C) screws (B).
6. Remove the housing cover (C) with outlet duct.
7. Remove the filter (D) and any loose debris that may be found in the base (E).
8. Inspect or replace the filter (D).
9. Reverse Steps 2 through 6 to reinstall the housing cover and reconnect the electrical connector to the sensor.
10. Reinstall the engine cover.

See Engine Cover .

Operating the engine with the air cleaner/filter off can cause you or othersWARNING
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.

Notice: If the air cleaner/filter is off, dirt can easily get into the engine, which could damage it.

Always have the air cleaner/filter in place when you are driving.

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