2005 Ford Expedition Owner's Manual - Page 283
2005 Ford Expedition Manual
Page 283 highlights
Driving momentary clunk and ratcheting sounds. This is the front drivetrain coming up to speed and engaging the front wheels, and is not cause for concern. Sand When driving over sand, try to keep all four wheels on the most solid area of the trail. Avoid reducing the tire pressures but shift to a lower gear and drive steadily through the terrain. Apply the accelerator slowly and avoid spinning the wheels. If you must reduce the tire pressure for whatever reason in sand, make sure you re-inflate the tires as soon as possible. Note: If your vehicle is equipped with the Tire Pressure Monitoring System (TPMS), the system indicator light may illuminate depending on how much air is released from your tires and/or how long you drive the vehicle under these conditions. Avoid excessive speed because vehicle momentum can work against you and cause the vehicle to become stuck to the point that assistance may be required from another vehicle. Remember, you may be able to back out the way you came if you proceed with caution. If your vehicle is equipped with AdvanceTrac with RSC, press the AdvanceTrac with RSC button (refer to AdvanceTrac with Roll Stability Control (RSC) Stability Enhancement System in this chapter) while driving in deep sand if you experience excessive engine power reduction. Mud and water If you must drive through high water, drive slowly. Traction or brake capability may be limited. When driving through water, determine the depth; avoid water higher than the bottom of the hubs (if possible) and proceed slowly. If the ignition system gets wet, the vehicle may stall. Once through water, always try the brakes. Wet brakes do not stop the vehicle as effectively as dry brakes. Drying can be improved by moving your vehicle slowly while applying light pressure on the brake pedal. Be cautious of sudden changes in vehicle speed or direction when you are driving in mud. Even four-wheel drive vehicles can lose traction in slick mud. As when you are driving over sand, apply the accelerator 283 2005 Expedition (exd) Owners Guide (post-2002-fmt) USA (fus)