Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSFORD1999WINDSTAR BASE, VAN CARGO, 3.8 4REPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE PERFORMANCETESTING & DIAGNOSISENGINE CONTROLS - TROUBLE SHOOTING - NO CODES - EEC-VSYMPTOMSTACHOMETER INOPERATIVESYMPTOM CHECKS
1999 Ford Windstar Base, Van Cargo, 3.8 4
Symptom Checks
1999 Ford Windstar Base, Van Cargo, 3.8 4SECTION Symptom Checks
Check the following items:
- On models with CTO circuit at PCM pin No. 48, go to TEST JH under SYSTEM TESTS in SELF-DIAGNOSTICS - EEC-V article. To determine if CTO circuit is used, go to appropriate PIN VOLTAGE/PID VALUE CHART under PIN VOLTAGE/PID VALUE CHARTS article. Check pin No. 48 under OUTPUTS.
- Check instrumentation. See appropriate INSTRUMENT PANELS article in ACCESSORIES for diagnosis and testing.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.