Section 27 (Engine Controls - Basic Engine Testing - 3.4L): Summary
WARNING: This page is about a different car, the 1998 Ford Taurus. However, it is still accessible from the selected car via links, so may be relevant.
If no faults were found while performing BASIC DIAGNOSTIC PROCEDURES, proceed to TESTS W/CODES - 3.4L article. If no fault codes are found in self-diagnostics, proceed to TESTS W/O CODES article for diagnosis by symptom (i.e., ROUGH IDLE, NO START, etc.) or intermittent diagnostic procedures.