2003 Oldsmobile Alero Owner's Manual - Page 236

Engine Air Cleaner/Filter 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 Part A: Scheduled Maintenance Services on page 6-4. I-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 stops flame if the engine backfires.If it isn't there and the engine backfires, you could be burned. Don't drive with it off, and be careful working on the engine with the air cleanerlfilter off. 2.2L L4 ECOTEC Engine shown, 3400 V6 Engine similar i The engine air cleanedfilter is located in the engine compartment on the driver's side of the vehicle. See Engine CompartmentOverview on page 5- i2 ior more information on location. To check or replace the engine air cleaner/filter, do the following: 1. Remove the screws that hold the cover on. 2. Lift off the cover. Notice; If the air cleanerlfilter 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/filterin place when you're driving. 5-2 1