2004 Ford Explorer Sport Trac Owner Guide 3rd Printing (Spanish) - Page 478

Maintenance and Specifications accessory and recommends use of these or SAE class "S" cables. See your dealer for more information. Follow these guidelines: • Do not use tire cables or chains with P255/70R16 size tires. • Cables or chains should only be used on the rear wheels. • If you need to use chains, it is recommended that steel wheels (of the same size and specification) be used, as chains may chip aluminum wheels. • Install cables or chains securely, verifying that they do not touch any wiring, brake lines or fuel lines. • Avoid overloading your vehicle. • Do not use cables or chains on dry roads. • Do not exceed 30 mph (48 km/h). • Drive cautiously. Remove the cables or chains when they are no longer needed. MOTORCRAFT PART NUMBERS Component 4.0L SOHC V6 engine Air filter element FA-1744 Fuel filter FG-1036 Battery BXT-65-650 Oil filter FL-820S 1 PCV valve 2 Spark plugs 1 The PCV valve is a critical emission component. It is one of the items listed in the Scheduled Maintenance Guide and is essential to the life and performance of your vehicle and to its emissions system. For PCV valve replacement, see your dealer or a qualified service technician. Refer to the Scheduled Maintenance Guide for the appropriate intervals for changing the PCV valve. Replace the PCV valve with one that meets Ford material and design specifications for your vehicle, such as a Motorcraft or equivalent replacement part. The customer warranty may be void for any damage to the emissions system if such a PCV valve is not used. 2 For spark plug replacement, see your dealer or a qualified service technician. Refer to the Scheduled Maintenance Guide for the appropriate intervals for changing the spark plugs. 220