2004 Oldsmobile Alero Owner's Manual - Page 240
2004 Oldsmobile Alero Manual
Page 240 highlights
Engine Air Cleaner/Filter When to Inspect the Engine Air Cleaner/Filter Inspect the air cleaner/filter at every oil change and replace at the first oil change after 25,000 miles (40 000 km). How to Inspect the Engine Air Cleaner/Filter To inspect the air cleaner/filter, remove the filter from the vehicle and lightly shake filter 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: 2.2L L4 ECOTEC™ Engine shown, 3400 V6 Engine similar See Engine Compartment Overview on page 5-12 for more information on location. 1. Remove the screws that hold the cover on. 2. Lift off the cover. 3. Check or replace the engine air cleaner/filter. 4. Put the cover back on tightly. Refer to the Maintenance Schedule to determine when to replace the air filter. See Scheduled Maintenance on page 6-4. 5-20