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 MANUALSFORD2007FUSION SEL, 2.3 Z, STANDARDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1491 (ENGINE CONTROLS - PINPOINT TESTS (HYBRID))PINPOINT TEST HC: FUEL DELIVERY SYSTEMTEST PROCEDURE
2007 Ford Fusion SEL, 2.3 Z, Standard
Test Procedure
2007 Ford Fusion SEL, 2.3 Z, StandardSECTION Test Procedure
WARNING: This page is about a different car, the 2011 Mercury Milan, 2011 Lincoln MKZ, 2011 Ford Fusion, 2010 Mercury Milan, and 2010 Ford Fusion. However, it is still accessible from the selected car via links, so may be relevant.
- HC1 CHECK THE SYSTEM INTEGRITY
- Visually inspect the complete fuel delivery system for damage and leakage.
- Check the following:
- fuel lines and connections
- relays
- fuel tank
- fuel pump
- fuel rail at injectors
- damaged connector pins
- electrical connectors not fully engaged
- Verify the fuse integrity.
- Verify the 12-volt battery is fully charged.
- Verify the fuel level, grade, and quality is sufficient to support normal operation of the engine.
Is a concern present?
Yes No REPAIR as necessary.
Clear the PCM DTCs. REPEAT the self-test.GO to HC2. - HC2 CHECK THE FUEL PRESSURE
- Ignition OFF.
- Carry out the fuel system pressure test. Refer to the FUEL SYSTEM - GENERAL INFORMATION , for the Fuel System Pressure Test procedure.
Is the ignition ON, engine OFF fuel system pressure between 262 - 448 kPa (38 - 65 psi)?
Yes No GO to HC3. GO to HC8. - HC3 CHECK THE SEPARATION LEVEL OF THE ETHANOL/WATER MIXTURE AND GASOLINE IN THE FUEL NOTE: This step requires the use of a locally obtained 200 ml beaker and a 25 ml graduated cylinder.
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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.