Sylvie Willis
The 2005 Ford Taurus is equipped with a fuel pump inside the fuel tank, which ensures that pressurised gasoline flows to the engine to power the vehicle. The fuel passes through a filter, either inside the fuel tank or externally in the fuel flow line. The fuel line pressure valve is located below the EGR valve, close to the intake manifold and below the intake air sensor. The fuel pressure regulator is the one with the vacuum line, and the sensor with the electrical connector is the fuel injection pressure and temperature sensor. The fuel line clip is a direct replacement and matches the fit and function of the factory part.
| Characteristics | Values |
|---|---|
| Fuel line pressure valve location | Below the EGR valve, close to the intake manifold and below the intake air sensor |
| Fuel pump replacement cost | $611 to $894 |
| Fuel pump replacement warning signs | Engine chokes or struggles to maintain speed, car won't start, car stalls once started, check engine light comes on, whirring sound from fuel tank |
| Fuel pump replacement procedure | Drop the tank or access through the trunk, remove the fuel pump through the top of the fuel tank via an access panel in the passenger compartment or by removing the tank |
| Fuel filter | Use a fuel filter bypass hose and a 'tee adapter' to test for fuel pressure |
| Fuel line clip | 5/16 In. and 3/8 In. Quick Connect Retainer Clip Kit, direct replacement for the original part |
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What You'll Learn
Fuel line pressure valve location
The fuel line pressure valve in a 2005 Ford Taurus is located at one end of the fuel rail, typically where the return line starts. It should resemble a disk. To access it, you will need to remove the upper intake.
The fuel pressure regulator is the one with the vacuum line, next to the sensor. If you only see one sensor with an electrical connector, this is the regulator and pressure sensor.
To test the fuel pressure, disconnect the fuel line at the fuel rail using a special tool to release the spring lock fuel line. Then, use a tee adapter to test the pressure.
The 2005 Ford Taurus does not have a Schrader valve port on the fuel rail.
The PCV valve is located near the IAC motor in the upper intake manifold, on the driver's side of the car, in the top-middle of the engine under a wiring harness and close to the fuel rail.
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Fuel pump replacement
The fuel pump in a 2005 Ford Taurus is located inside the fuel tank and has a small electric motor to ensure that pressurised gasoline flows to the engine to power the vehicle. While most fuel pumps will last for the life of the vehicle, they can occasionally fail. Signs of failure include a car that won't start or stalls once it has started. If you ignore these symptoms for too long, your engine will eventually fail to start.
To replace the fuel pump, you will need to drain the fuel tank and then drop the tank or access it through the trunk. It is best to have this done at a service centre or dealership, as it is a moderately complicated job. The average national cost for a fuel pump replacement across all vehicles is roughly between $611 and $894 (including parts and labour), but this may differ for a Ford Taurus.
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Fuel filter bypass hose
The 2005 Ford Taurus has a returnless fuel system, which means that it uses a sensor to regulate pressure electrically, rather than a fuel pressure regulator. This model also does not have a Schrader valve port on the fuel rail.
To test the fuel pressure with a mechanical gauge, you can disconnect the fuel line at the fuel rail and use a 'tee adapter'. A scan tool can also be used to check the fuel pressure by reading the pressure in the datalogger feature (electronic fuel pressure sensor).
To replace the fuel filter, you will need to relieve the pressure in the system by running the car until it stalls and opening the gas cap. You can then disconnect the fuel line from the filter closest to the engine and use a small hose to connect to the filter, with the other end inserted into the fuel line. This will give an accurate fuel pressure reading.
The 2005 Ford Taurus also has an engine coolant bypass hose, which connects the intake manifold to the water pump.
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Fuel tank removal
If you are set on removing the fuel tank yourself, here is a step-by-step guide to help you with the process for a 2005 Ford Taurus:
First, drive your car until the tank is as empty as possible. This will make the process easier as a full tank is heavier and harder to handle. Plus, there is a lower risk of fuel spillage. Once your tank is empty, park your car in a well-ventilated area, preferably with the back end of the car hanging out of your garage. This will reduce the risk of inhaling dangerous fumes.
Next, disconnect the battery ground cable. Then, release the two clamps to the fuel tank filler tubes and disconnect the two quick-release couplings from the fuel tank tubes. After that, disconnect the fuel pump electrical connector. Now, remove the two fuel tank support strap bolts and lower the fuel tank. Swing the fuel tank support straps away from the fuel tank and clean the area around the fuel pump mounting flange.
At this point, you will need to remove the two fuel pump module fuel line R-clips and remove the fuel lines. Using a special tool, remove the fuel pump module retaining ring. Turn the fuel pump module counterclockwise and it will release from the locking tabs. Finally, remove the fuel pump module from the fuel tank and drain the remaining fuel from the tank.
Note: It is important to be cautious of any open flame or sparks during this process. Additionally, the parts on top of the tank are all plastic and break easily, so take your time when removing them.
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Fuel pump failure symptoms
The fuel pump is an essential component of a car's fuel system, delivering fuel to the engine to ensure smooth and efficient operation. While fuel pumps are designed to be long-lasting, they can occasionally fail.
- Engine struggles to maintain speed or stalls: A failing fuel pump may cause the engine to "choke" or struggle to maintain speed. This can lead to stalling if not addressed.
- Difficulty starting the engine: A fuel pump that is not functioning properly can make it difficult to start the engine. The car may require multiple attempts to start or fail to start altogether.
- Whirring or whining noise from the fuel tank: Fuel pumps normally operate quietly, so if you hear a loud whirring or whining sound coming from the fuel tank, it could indicate an issue with the fuel pump.
- Engine overheating: If the fuel pump causes the engine to receive too much fuel, it can lead to overheating. This can cause the engine to stall or shut off unexpectedly.
- Decreased fuel efficiency: A failing fuel pump may cause the engine to receive too much or too little fuel, resulting in decreased fuel efficiency and more frequent trips to the gas station.
- Power loss or surges: When a fuel pump fails to deliver the required amount of fuel, the engine may lose power, especially when driving up steep inclines or carrying heavy cargo. Conversely, if the pump is pushing too much fuel into the engine, you may experience power surges or speed spikes and drops.
- Engine misfires: Engine misfires, especially when the fuel level is low, can be an indication of a failing fuel pump.
- Check engine light: If the fuel flow is restricted, it can cause the check engine light to illuminate.
If you suspect a problem with your fuel pump, it is important to consult a qualified mechanic for diagnosis and repair.
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Frequently asked questions
Yes, the 2005 Ford Taurus has a return fuel line. The fuel line pressure valve is located at one end of the fuel rail and looks like a disk.
Warning signs of a bad fuel pump include an engine that chokes or struggles to maintain speed. If these symptoms are ignored, your engine will eventually fail to start. Other signs include a stalled engine, a check engine light, or a whirring sound coming from your fuel tank.
It is recommended to take your car to a service center that works on Ford vehicles to have them diagnose the problem. If you are looking to replace the fuel pump, you will need to remove the fuel tank or access it through an access panel in the passenger compartment.
The average national cost for a fuel pump replacement across all vehicles is roughly between $611 and $894, including parts and labor.
