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 MANUALSLINCOLN2009NAVIGATOR L RWDREPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE PERFORMANCEFUEL DELIVERYFUEL TANK & FUEL LINESDESCRIPTION AND OPERATIONFUEL TANK AND LINES
2009 Lincoln Navigator L RWD
Fuel Tank and Lines
2009 Lincoln Navigator L RWDSECTION Fuel Tank and Lines
The fuel system consists of the following:
- Fuel tank assembly
- Easy Fuel ™ (capless) fuel tank filler pipe assembly (which cannot be modified in any way)
- Lifetime fuel filter, 106L (28.0 gal) (serviced as part of the Fuel Pump (FP) module)
- Fuel filter, 127L (33.5 gal) (located in front of the fuel tank)
- Fuel tube(s)
- Fuel vapor tubes
- Fresh air tube (located on top of the transmission)
- FP
module containing:
- the electric FP , which provides pressurized fuel to the engine.
- the fuel level sensor.
- an inlet filter.
- a check valve which maintains system pressure after the pump is shut off.
- a pressure regulator.
The FP is controlled by the PCM. Electrical power to the pump is provided through the Inertia Fuel Shutoff (IFS) switch.
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.