2010 GMC Acadia Owner's Manual - Page 328

10-12 Vehicle Care 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. Remove the engine cover. See Engine Cover on page 10‑7. 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). 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 80 000 km (50,000 mile) interval. See Scheduled Maintenance on page 11‑2 for more information. If driving in dusty/dirty conditions, inspect the filter at each engine oil change. See Engine Compartment Overview on page 10‑6 for the location of the engine air cleaner/filter.