2008 Ford F250 Owner Guide 4th Printing - Page 380

Maintenance and Specifications DRIVELINE UNIVERSAL JOINT AND SLIP YOKE If the original universal joints are replaced with universal joints equipped with grease fittings, lubrication will be necessary. Refer to the replacement universal joint manufacturer's recommendation for lubrication type and maintenance intervals. AIR FILTER MAINTENANCE Refer to the scheduled maintenance information for the appropriate intervals for changing the air filter element. When changing the air filter element, use only the Motorcraft air filter element listed. Refer to Motorcraft part numbers in this chapter. The following procedure is for vehicles equipped with a gasoline engine. If your vehicle is equipped with a diesel engine, refer to the 6.0 and 6.4 Liter Power Stroke Direct Injection Turbo Diesel Owner's Guide Supplement. Note: Do not start your engine with the air cleaner removed and do not remove it while the engine is running. Changing the air filter element 1. Loosen clamp and disconnect sensor. 380 2008 F-250/350/450/550 (f23) Owners Guide (post-2002-fmt) USA (fus)