Replacing Fuel Pump In 2000 Ford Mustang: Step-By-Step Guide

how to change fuel pump 2000 ford mustang

If you're experiencing issues with your 2000 Ford Mustang's fuel pump, you may need to replace it. This can be a challenging task and it's recommended to have a helper for the process. Before beginning, ensure you have the necessary tools and safety equipment, including safety goggles to protect your eyes. Start by disconnecting the negative terminal from the battery and jacking up the car. If the fuel tank is not empty, siphon the fuel into a clean container. Next, relieve the fuel pressure in the lines and then lower the tank by removing the straps holding it in place. Once the tank is down, remove the wiring connectors and the collar holding the pump in place. Install the new pump, reassemble the components, and you're good to go!

Characteristics Values
Difficulty Level Medium-Hard
Tools Required Jack, Jack Stands, Wrench, Common Tools
Time Taken A few hours
Car Preparation Jack up car, remove negative battery terminal
Fuel Siphon fuel into a container to reuse later
Fuel Pressure Relieve fuel pressure in lines
Tank Lower tank, held by straps, remove wiring connectors and collar holding pump
Reinstallation Check float, cutoff, and get rolling

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Siphoning fuel into a container to reuse later

When changing the fuel pump of a 2000 Ford Mustang, you may want to siphon the fuel into a container to reuse later. Here is a step-by-step guide on how to do this:

Firstly, find a suitable container to siphon the fuel into. This should be a closed container, such as a gas canister, to prevent any fuel spills or inhalation of fumes. Place this container on the ground near the opening of the car's fuel tank.

Next, obtain a length of clear plastic tubing that is around 1 inch (2.5 cm) in diameter. You will need two lengths of tubing: one long enough to reach the bottom of the fuel tank, and a shorter length that will reach just inside the tank. Feed both tubes into the tank, with the longer tube fully submerged in the fuel.

Now, use a rag to create a seal around the tubes. This step is important as it helps to increase the air pressure in the tank, which will displace the fuel through the longer tube and into your container. Ensure that the rag is packed tightly around the tubes, but not so tight that it compresses them and restricts the flow.

Once the seal is in place, you can begin to force air into the shorter tube. You can do this by blowing into the tube, but be careful not to inhale any fumes. Alternatively, you can use a mechanical air pump. Increasing the air pressure inside the tank will cause the fuel to flow through the longer tube into your container.

Monitor the flow of fuel, and once it is moving freely, you can stop blowing air into the shorter tube. Gravity will keep the fuel flowing. When you want to stop the flow of fuel, simply cover the long tube with your thumb, raise it above the level of fuel in the tank, and remove your thumb. Any remaining fuel in the tube should flow back into the tank.

Finally, remove the tubes from the tank and close the fuel tank and your fuel container.

It is important to note that this method of siphoning fuel carries some risks, including the potential inhalation of harmful fumes. Always exercise caution when working with flammable liquids and ensure the area is well-ventilated.

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Relieving fuel pressure in lines

To relieve fuel pressure in the lines of a 2000 Ford Mustang, you can try the following methods:

  • Remove the fuel pump fuse and start the vehicle, letting it run for a while.
  • Disconnect the fuel line using a fuel line disconnect tool.
  • Open the gas cap to relieve pressure in the tank.
  • Use a small Allen key wrench with a rag wrapped around it to push down on the Schrader valve on the front of the fuel rail.
  • Wait overnight; the pressure should eventually run off.
  • Pull the fuse for the pump while the car is running.
  • Inject 12 volts towards the fuel pump on the RD/BK and BN/PK wires.
  • Use the fuel pressure test fitting on the metal line coming from the fuel rail to unscrew the plastic cap and push the Schrader valve.

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Disconnecting the wiring connectors

Before disconnecting any wiring, it is important to take some preliminary steps. First, make sure the negative terminal of the battery is disconnected, and the car is securely jacked up and supported on jack stands. If the fuel tank is not almost empty, siphon off the fuel into a clean container to be reused later. Next, relieve the fuel pressure in the lines.

Now, to lower the fuel tank, you need to remove the bolts holding the straps that support it. Once the tank is lowered, you will be able to access the wiring connectors. There should be one electrical connector to the tank, as well as connectors for the fuel filter, evap in/out, and another tube on the front driver's side.

Disconnecting these wiring connectors is a delicate task, and it is important to do it carefully to avoid any damage. Make sure you have a good view of the connectors and identify the correct wires to be disconnected. Use the appropriate tools to carefully detach the connectors from the fuel pump and related components. Ensure that you do not force or twist the connectors excessively, as this could damage the wiring.

Once the wiring connectors are successfully disconnected, set them aside and proceed with the next steps of changing the fuel pump, such as removing the collar holding the pump in the tank. Remember to work carefully and methodically to avoid any mishaps or damage to your vehicle's systems.

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Removing the collar holding the pump in the tank

To remove the collar holding the pump in the tank, you will first need to disconnect the negative terminal from the battery and jack the car up, supporting it on jack stands. If the tank is not almost empty, siphon off the fuel into a clean container to reuse later. Next, relieve the fuel pressure in the lines, then lower the tank, which is held up by straps. Once the tank is down, remove the wiring connectors and the collar holding the pump in the tank.

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Replacing the pump with a new one

To replace the fuel pump in a 2000 Ford Mustang, you will need to source a new fuel pump that fits your model of Mustang. There are a variety of options available, including the Delphi Fuel Pump and the TruGrade Fuel Pump.

Once you have purchased a new fuel pump, you can begin the process of installation. Here is a step-by-step guide on how to replace the fuel pump in your 2000 Ford Mustang:

Step 1: Disconnect the Battery and Jack Up the Car

  • Disconnect the negative terminal from the battery.
  • Jack up the car and secure it on jack stands.

Step 2: Drain the Fuel Tank

If the fuel tank is not empty, siphon off the fuel into a clean container.

Step 3: Relieve Fuel Pressure and Lower the Tank

  • Relieve the fuel pressure in the lines.
  • Lower the fuel tank by removing the bolts that hold the straps supporting the tank.

Step 4: Remove the Old Fuel Pump

Once the tank is lowered, remove the wiring connectors and the collar holding the pump in the tank.

Step 5: Install the New Fuel Pump

  • Install the new fuel pump by connecting the wiring and securing the collar.
  • Check that the float is working before reinstalling the access plate.

Step 6: Reinstall the Fuel Tank and Reconnect the Battery

  • Raise the fuel tank back into position and secure it with the straps.
  • Reconnect the negative terminal to the battery.

It is recommended to have a helper for this process, as it can be challenging to manage all the components and connections by yourself. Additionally, make sure to refer to the specific instructions provided with your new fuel pump, as there may be slight variations in the installation process depending on the model and brand of the pump.

Frequently asked questions

The fuel pump is located inside the fuel tank.

Signs of a bad fuel pump include stalling and an electrical whine from the rear of the car.

Disconnect the negative terminal from the battery, jack up the car, and support it on jack stands. If the tank is not empty, siphon off the fuel. Next, relieve the fuel pressure in the lines.

You will need to lower the tank, which is held up by straps.

Remove the wiring connectors and the collar holding the pump in the tank.

It is a difficult job to do alone, so it is recommended to get an assistant. You will also need to buy a new rubber grommet, as the old one cannot be reused.

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