Section 69 (Engine Controls - Self-Diagnostics - EEC-V - Diesel 7.3L (99F E Series & 99F F450/550)): Introduction

WARNING: This page does not describe the selected car, but rather 10 other vehicles, including the 2002 Ford RV Cutaway, 2002 Ford Pickup, 2002 Ford F550 Super Duty, 2002 Ford F450 Super Duty, and 2002 Ford Excursion. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: References to Econoline include Cutaway and RV Cutaway models. References to F250-550 include Cab & Chassis models.

Since many computer-controlled and monitored components set a Diagnostic Trouble Code (DTC) when a malfunction occurs, check for Powertrain Control Module (PCM) DTCs prior to testing a particular symptom or an individual system or component. If no DTCs are present or only pass codes are found during self-diagnostics and a symptom is present, proceed to SYMPTOM DIAGNOSIS under SYMPTOMS in TROUBLE SHOOTING - NO CODES - EEC-V - DIESEL article for diagnosis by symptom. If symptom tests check okay, perform all basic diagnostic procedures in BASIC DIAGNOSTIC PROCEDURES - TRUCKS - DIESEL article.