Section 121 (Engine Controls - Tests W/Codes - EEC-IV (4.0L)): Introduction

WARNING: This page is about a different car, the 1995 Ford Explorer and 1995 Ford Aerostar. However, it is still accessible from the selected car via links, so may be relevant.

Perform all steps in BASIC TESTING - 4.0L article in the ENGINE PERFORMANCE section. If no fault is found while performing steps in BASIC TESTING , proceed with self-diagnostics. If no diagnostic trouble codes or only pass codes (system functioning properly) are found during self-diagnostics, proceed to appropriate TESTS W/O CODES (EEC-IV) article in the ENGINE PERFORMANCE section below for diagnosis by symptom.

TESTS W/O CODES - EEC-IV (for Aerostar)
TESTS W/O CODES - EEC-IV (for Explorer)