Symptom Chart

Diagnostics in this service information assume a certain skill level and knowledge of Ford-specific diagnostic practices. Refer to DIAGNOSTIC METHODS for information about these practices.

In most circumstances the PCM sets DTCs to help guide with diagnostics. Refer to the DTC CHART-PCM  before using the symptom chart. The Condition column lists the vehicle condition. The Possible Sources column lists a detailed vehicle condition and the Action column lists the action to be performed to determine the cause of the condition. Each action lists the components that can cause the condition and the individual components in that system. The components are listed in order of disassembly. Use the list of components and the required action to focus on disassembly inspections for the root cause of the concern.