2006 Lincoln Navigator Owner Guide 2nd Printing - Page 375

Maintenance and Specifications 3. Pull air filter tray assembly out toward front of vehicle and lift air filter element up and out of housing. The air filter box needs to be free of any debris before installing a new air filter. 4. Install a new air filter element into the tray assembly. 5. Return air filter tray to original position by pressing firmly on the handle until all rearward movement stops and secure the two clamps. 6. Install engine appearance cover. Be sure both retainers are turned to position. the DRIVELINE UNIVERSAL JOINT AND SLIP YOKE Turn off the running boards, if equipped, before working under the vehicle, jacking or placing any object under the vehicle. Never place your hand between the extended running board and the vehicle. A moving running board may cause injury. Your vehicle may be equipped with universal joints that require lubrication. Refer to the scheduled maintenance information for maintenance intervals. If the original universal joints are replaced with universal joints equipped with grease fittings, lubrication will also be necessary. 375 2006 Navigator (nav) Owners Guide (post-2002-fmt) USA (fus)