2008 Chevrolet Impala Owner's Manual - Page 269

{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. 2. Push the filter cover housing toward the engine. 3. Pull out the filter. 4. Inspect or replace the engine air cleaner/filter. 5. To reinstall the cover, position the tabs through the hinges on the housing. 6. Push the cover tabs on top of the housing to lock the cover in place. 5-23