Symptom Checks
WARNING: This page is about a different car, the 1995 Ford Explorer. However, it is still accessible from the selected car via links, so may be relevant.
Perform the following:
- Perform QUICK TEST. See TESTS W/CODES - EEC-IV (4.0L) article. If code is present, perform appropriate CIRCUIT TEST.
- Check for restricted exhaust system.
- Check for restricted air intake duct.
- Check EGR system. See EMISSION SYSTEMS & SUB-SYSTEMS in SYSTEM/COMPONENT TESTS - EEC-IV (4.0L) article.
- Check ignition system. See IGNITION SYSTEMS in appropriate SYSTEM/COMPONENT TESTS - EEC-IV (4.0L) article.
- Check idle speed. See IDLE SPEED & MIXTURE in ADJUSTMENTS - 4.0L article.
- Check engine mechanical condition. Check compression, camshaft, valve train components, etc.
- Ensure transmission is functioning properly.
- Perform CIRCUIT TEST S. See TESTS W/CODES - EEC-IV (4.0L) article.
- If engine stalls during parking maneuvers, check Power Steering Pressure (PSP) switch operation. See step 3) of CIRCUIT TEST FF in TESTS W/CODES - EEC-IV (4.0L) article.
- If engine stalls during transmission engagement, check transmission solenoids. Go to CIRCUIT TEST TC in TESTS W/CODES - EEC-IV (4.0L) article.
- If engine stalls with A/C on, go to step 30) of CIRCUIT TEST KM in TESTS W/CODES - EEC-IV (4.0L) article.