1999 Buick LeSabre Owner's Manual - Page 253

yellowblue 3. Disconnect the electrical connector from the air intake hose. This will allow you to lift the rear portion of the air cleaner. 4. After detaching the hose from the throttle body, pull back the entire rear portion of the air cleaner by pulling upward and rearward. 5. Replace the air filter. 6. Reinstall the rear section of the air cleaner. 7. Reconnect the electrical connector. 8. Reattach the air intake hose by snapping it back onto the throttle body. Refer to the Maintenance Schedule to determine when to replace the air filter. See "Scheduled Maintenance Services" in the Index. 6-17