2007 GMC Acadia Owner's Manual - Page 403

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. 2. 3. 4. Loosen the screws that hold the cover on. Disconnect the electrical connector. Lift off the cover. 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. {CAUTION: 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. If it is not there and the engine backfires, you could be burned. Do not drive with it off, and be careful working on the engine with the air cleaner/filter off. Notice: If the air cleaner/filter is off, a backfire can cause a damaging engine fire. And, dirt can easily get into your engine, which will damage it. Always have the air cleaner/filter in place when you are driving. 403