1999 Ford Expedition Scheduled Maintenance Guide 3rd Printing - Page 28

Normal Schedule Normal Schedule Replace spark plugs (Villager) Inspect drive belt (Villager) Replace PCV valve (all 4 cylinder engine vehicles) Perform automatic transmission/transaxle services on all vehicles equipped with AX4S, AX4N, 4R70W. Consult your dealer for your particular requirements. Inspect camshaft belt on all 2.0L, 4 cylinder engines (Escort, Tracer, Contour, Mystique, Cougar, and ZX2) Light Trucks, Sport Utilities, and Vans: All Services Above Plus Replace manual transmission fluid Inspect/adjust 4x2 wheel bearings for end play (except F-450/F-550) Lubricate 4x2 wheel bearing (except F-450/F-550) Inspect and lubricate 4x2 ball joints (except F-450/F-550) Replace fuel filter - gasoline engines (E/F Super Duty)* Change automatic transmission fluid (Class A Motorhome) Inspect camshaft belt on 4 cylinder engine (2.5L Ranger) 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: Drain coalescent fuel filter bowl 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. 28