Preliminary Inspection
- Ensure vehicle is thoroughly road tested to verify driver's complaint. Determine if problem occurs during upshift, downshift, coasting or engagement. If noise is diagnosed, check if noise is affected by engine speed, vehicle speed, gear selection or temperature. Ensure vehicle is at normal operating temperature when inspecting.
- Inspect fluid level and condition. Visually inspect for vehicle modifications, electronic add-ons, fluid leaks and/or incorrect linkage adjustment. Check for Diagnostic Trouble Code (DTC) before any mechanical repair is performed. See FORD 4F20E ELECTRONIC CONTROLS article for DTC diagnosis and repair procedures. If no DTCs are present, see applicable symptom in SYMPTOM DIAGNOSIS.