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.
No Start/Normal Crank: Notes
Extended cranking, due to a no-start condition, can load exhaust system with raw fuel, which can ruin catalytic converter after engine is started. On vehicles with Secondary Air Injection (AIR) system, perform the following procedure after the no-start condition has been repaired.
- On vehicles with electric AIR system, disconnect AIR solid state relay. Start and run engine until surplus fuel is used, and then reconnect relay. Disconnecting AIR solid state relay may set a Diagnostic Trouble Code (DTC). After repairs are completed, clear DTCs. See appropriate article:
For Contour & Mystique 2.0L, see TESTS W/CODES - 2.0L .
For Contour & Mystique 2.5L, see TESTS W/CODES - 2.5L .
For Windstar, see TESTS W/CODES .
- On vehicles with mechanical Secondary Air Injection (AIR), disconnect secondary air supply. Start and run engine until surplus fuel is used, and then reconnect air supply.
Use the Manual With the Right Hardware
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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.
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