Section 130 (ENGINE CONTROLS - SELF-DIAGNOSTICS - 7.3L (995, 996 F650/750, 99F E Series & 99F F450/550) DIESEL): Summary
WARNING: This page does not describe the selected car, but rather 9 other vehicles, including the 2003 Ford RV Cutaway, 2003 Ford Pickup, 2003 Ford F550 Super Duty, 2003 Ford F450 Super Duty, and 2003 Ford Excursion. However, it is still accessible from the selected car via links, so may be relevant.
If no DTCs are present but driveability concern still exists, proceed to TROUBLE SHOOTING - NO CODES - 7.3L DIESEL article for symptom diagnosis or intermittent diagnostic procedures.