Preliminary Checks
WARNING: This page is about a different car, the 1995 Ford RV Cutaway, 1995 Ford Econoline, 1995 Ford Cutaway, and 1995 Ford Club Wagon. However, it is still accessible from the selected car via links, so may be relevant.
Check vacuum hose routing. Check for restricted air filter/air intake duct. Check fuel quality (octane, winter/summer grade fuel, methanol, etc.). Check ignition and wiring harness connectors.