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.
Test Procedure
2010 Volkswagen Routan SSECTION Test Procedure
WARNING: This page is about a different car, the 2010 Mercury Mariner and 2010 Ford Escape. 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 inertia fuel shutoff (IFS) switch is set (button pushed in). Refer to the Owner's Literature, Roadside Emergencies for the location of the IFS switch.
- 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.
- Verify clean sufficient fuel.
Is a concern present?
Yes No REPAIR as necessary.
CLEAR the 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.
RENDER: 1.0x
NO RELATED
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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.