2001 Ford F250 Owner's Manual - Page 237

Maintenance and care Allow the vehicle to sit for at least eight hours without starting the engine. Then, start the engine and complete the above driving cycle. The engine must warm up to its normal operating temperature. Once started, do not turn off the engine until the above driving cycle is complete. BULBS Replacing exterior bulbs Check the operation of the following lamps frequently: • Headlamps • High-mount brakelamp • Brakelamps • Turn signals • License plate lamp • Tail lamps • Back-up lamps Do not remove lamp bulbs unless they can be replaced immediately with new ones. If a bulb is removed for an extended period of time, contaminants may enter the lamp housings and affect lamp performance. Replacing headlamp bulbs (aerodynamic) 1. Make sure that the headlamp control is in the OFF position. 2. Open the hood. 3. Disconnect the electrical connector from the bulb by pulling rearward. 4. Remove bulb retainer ring by turning it counterclockwise, then slide the ring off the plastic base. 5. Without turning, carefully pull bulb out of headlamp assembly. 237