|  |  | | Steering performance also has been improved on the new Expedition. A new variable boost steering pump uses lightweight aluminum components and reduces steering efforts by 15 percent for easy maneuverability at slow speeds while delivering a firm, responsive feel at highway speeds.
Larger front and rear brake calipers and thicker rotors improve durability and increase stopping capability. A new dual-bore master cylinder gives a better brake pedal feel and more control over the brake curve, increasing stopping confidence.
4x4 Capability, Tough Truck Standards
Expedition's available 4x4 system provides the capability required by today's full-size SUV owners, who can confidently rely on its toughness and durability. Expedition is tested to meet the same Ford tough truck standards as the F-Series pickup, including being put through the same durability tests at extreme test facilities in Arizona and California.
The 4x4 models have two-speed transfer cases with optional electronic shift-on-the-fly capability, controlled from a dash-mounted rotary knob. In low range, the electronic throttle control changes to a special off-road calibration for more precise torque management in the worst conditions, such as a sandy hill climb or when pulling a heavy boat out of the water on a moss-slicked ramp.
As an added benefit, the transfer case is mounted directly to the rear of the transmission for more robustness and improved NVH.
5.4L V-8 Mated to New Fuel-Efficient 6-Speed
Expedition is powered by Ford's tough truck-proven 5.4-liter Triton V-8. With single overhead cams, three valves per cylinder and variable cam timing, the 5.4-liter engine delivers a balance of refinement and muscle. Rated at 300 horsepower and 365 foot-pounds of torque, Expedition can tow up to 9,200 pounds.
The Triton engine is paired with a new standard 6-speed automatic transmission. The 6R transmission has manual shift capability, and its wide 6.04:1 gear ratio and two overdrive gears deliver improved performance and fuel economy over the 4-speed it replaces.
AdvanceTrac with RSC Among Other Standard Safety Features
Expedition offers more standard safety content for 2007, including seat-mounted front side air bags and three-row Safety Canopy rollover detection system that includes extended-duration side curtain air bags that extend down to the beltline for increased coverage. The system also features roll-fold deployment for enhanced protection.
Ford's exclusive AdvanceTrac with RSC (Roll Stability Control) also is standard on both Expedition and Expedition EL. Unlike competitors' systems, Ford's system utilizes a gyroscopic roll rate sensor to accurately measure the vehicle's yaw and roll angles. If the roll rate sensor detects a significant roll angle, the system applies additional countermeasures - such as applying brakes to one or more wheels or reducing engine power - to help the driver maintain control. The system is so advanced that Ford has 82 active patents and 197 pending patents.
"Expedition's confident handling paired with standard class-exclusive AdvanceTrac with RSC (Roll Stability Control) actively helps drivers prevent accidents from occurring. Should an accident occur, Expedition features a comprehensive package of passive safety features to help enhance safety protection," says Stephen Kozak, safety chief engineer.
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