Engine Controls - Basic Testing - 3.0L: Summary

If no faults were found while performing procedures in BASIC DIAGNOSTIC PROCEDURES article, see TESTS W/CODES - EEC-IV (3.0L) article in the ENGINE PERFORMANCE section. If no hard codes are found in self-diagnostics, proceed to appropriate TESTS W/O CODES article below for diagnosis by symptom (i.e., ROUGH IDLE, NO START, etc.) or intermittent diagnostic procedures.

• TESTS W/O CODES - EEC-IV (for Aerostar)
• TESTS W/O CODES - EEC-V (for Ranger)
• TESTS W/O CODES - EEC-V (for Windstar)
• TESTS W/O CODES (for Villager)