Symptom Checks
WARNING: This page is about a different car, the 1996 Ford Ranger. However, it is still accessible from the selected car via links, so may be relevant.
Check the following items:
- Check idle speed. See IDLE SPEED in ADJUSTMENTS - 3.0L article.
- Check PCV system. See CIRCUIT TEST HG.
- Check ignition system. See CIRCUIT TEST JD.
- Check fuel delivery system. See CIRCUIT TEST HC.
- Check Evaporative Emission (EVAP) sys. See CIRCUIT TEST HW.
- Check exhaust system for restriction. See CIRCUIT TEST HF.
- Check air intake system. See CIRCUIT TEST HU.
- Check exhaust system. See CIRCUIT TEST HF.
- Check engine compression. Check engine mechanical condition. Check intake manifold gasket, camshaft and valves.
- Ensure engine operates at normal operating temperature.
- Check EGR system. See the SYSTEM/COMPONENT TESTS article.
- Check engine compression. Check engine mechanical condition. Check intake manifold gasket, camshaft and valves.