Symptom Chart
WARNING: This page is about a different car, the 2003 Mercury Sable and 2003 Ford Taurus. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
Before using the Symptom Chart, disconnect accelerator cable from the throttle body lever, and disconnect the speed control actuator cable from the throttle body, if equipped.
Courtesy of FORD MOTOR CO.