1999 Ford Expedition Scheduled Maintenance Guide 3rd Printing - Page 19

Normal Schedule Normal Schedule Replace spark plugs (Villager) Inspect drive belt (Villager) Replace PCV valve (All 4 cylinder engine vehicles. See page 5.) Perform automatic transmission/transaxle services on all vehicles equipped with AX4S, AX4N, 4R70W. Consult your dealer for your particular requirements. Light Trucks, Sport Utilities, and Vans: All Services Above Plus Inspect and lubricate 4x2 ball joints (except F-450/F-550) Inspect/adjust 4x2 wheel bearings for end play (except F-450/F-550) Lubricate 4x2 wheel bearings (except F-450/F-550) Replace fuel filter - gasoline engines (E/F Super Duty)* Replace manual transmission fluid Change automatic transmission fluid (Class A Motorhome) 4x4: All Services Above Plus Lubricate front half-shaft slip yoke Replace transfer case fluid Lubricate transfer case shift linkage, if equipped Diesel: All Applicable Services Above Plus Check air filter minder, replace filter as required Replace fuel filter Natural Gas Vehicles: All Applicable Services Above Plus: Inspect NGV tanks *If vehicle is registered in California, the California Air Resources Board has determined that the failure to perform this maintenance item will not nulify the emission warranty or limit recall liability prior to the completion of the vehicle's useful life. We, however, urge that all recommended maintenance services be performed at the indicated intervals and the maintenance be recorded. 19