1998 Pontiac Bonneville Owner's Manual - Page 269
1998 Pontiac Bonneville Manual
Page 269 highlights
4. After detaching the hosefrom the throttle body and disconnecting the electrical connector, pull back the entire rear portion the air cleaner by pulling of upward and rearward. 2. Remove the air intake hose that is fitted over the throttle body by pulling the hose upward and away from the throttle body which is located near the top of the engine. 3. Disconnect the electrical connector which is attached to the air temperature sensor located in the hose. This will allow you to lift the rear portionof the air cleaner. 5. Replace the air filter. 6. Reinstall the rear sectionof the air cleaner. 7. Reconnect the electrical connector. 8. Reattach the air intake hose. Refer to the Maintenance Schedule determine when to to replace the air filter. See "Scheduled Maintenance Services" the Index. in 6-18