2008 GMC Acadia Owner's Manual - Page 334

Engine Air Cleaner/Filter 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 (80 000 km) interval. See Scheduled Maintenance on page 6-4 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 (away from vehicle) to release loose dust and dirt. If the filter remains caked with dirt, a new filter is required. To inspect or replace the engine air cleaner/filter, do the following: 1. Loosen the screws that hold the cover on. 2. Disconnect the electrical connector. 3. Lift off the cover. 4. Remove the engine air cleaner/filter element and any loose debris that may be found in the air cleaner base. 5. Inspect or replace the air filter element. 6. Reverse Steps 1 through 3 to reinstall the cover and reconnect the electrical connector. See Engine Compartment Overview on page 5-14 for the location of the engine air cleaner/filter. 5-20