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HOMESERVICE MANUALSFORD2003WINDSTAR BASEREPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE PERFORMANCETESTING & DIAGNOSISENGINE CONTROLS - TROUBLE SHOOTING - NO CODES - CNG, FLEX-FUEL & GASOLINESYMPTOMSSPARK KNOCKMISCELLANEOUS COMPONENT OR SYSTEM CHECKS
2003 Ford Windstar Base

Miscellaneous Component Or System Checks

2003 Ford Windstar BaseSECTION Miscellaneous Component Or System Checks

Check the following:

  • Check Mass Air Flow (MAF) sensor input to PCM. Go to TEST DC: MASS AIRFLOW SENSOR , step 25)  under SYSTEM TESTS in SELF-DIAGNOSTICS - CNG, FLEX-FUEL & GASOLINE article.
  • Check engine mechanical condition. Check compression, camshaft, valve train components, etc. and repair as necessary. Check engine oil quality. See appropriate article in ENGINES.
  • Check fuel delivery system. Go to TEST HB: NATURAL GAS FUEL DELIVERY SYSTEM , step 1)  (Natural Gas models), or go to TEST HC: GASOLINE FUEL DELIVERY SYSTEM , step 1)  (all others) under SYSTEM TESTS in SELF-DIAGNOSTICS - CNG, FLEX-FUEL & GASOLINE article.
  • Check secondary ignition system. Go to TEST JB: SECONDARY IGNITION , step 1)  under SYSTEM TESTS in SELF-DIAGNOSTICS - CNG, FLEX-FUEL & GASOLINE article.
  • Check PCV system. For Aviator and Mustang 4.6L, go to TEST HG: PCV SYSTEM , step 1)  under SYSTEM TESTS in SELF-DIAGNOSTICS - CNG, FLEX-FUEL & GASOLINE article. For all others, go to TEST HG: PCV SYSTEM , step 4)  under SYSTEM TESTS in SELF-DIAGNOSTICS - CNG, FLEX-FUEL & GASOLINE article.
  • Visually inspect engine oil quality.

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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.