F 550 4WD Super Duty V10-6.8L VIN D (2004)
Accelerator Pedal: Description and Operation
ACCELERATION CONTROL
On gasoline engines the throttle is controlled by an accelerator cable attached to the accelerator pedal and shaft. The accelerator pedal and shaft should
travel smoothly from the idle to the wide open throttle positions. Hesitation on return or prevention of return to the idle position must not occur.
Surrounding components such as wiring, hoses, sound insulator and floor carpet must not contact the sliding inner member of the accelerator cable or the
accelerator pedal and shaft. The throttle assembly is not adjustable.
The diesel engine does not use an accelerator cable. Instead, the diesel engine uses an accelerator sensor assembly located on the accelerator pedal
assembly. This drive-by-wire system is entirely electronic and, except for the accelerator pedal assembly, does not use mechanically moving parts. The
accelerator sensor assembly is not adjustable.
The adjustable accelerator pedal is driven by a cable connected to a motor mounted on the brake pedal assembly. The driver adjusts the pedal position by
operating a switch mounted in the instrument panel.
