Sylvie Willis
If you're experiencing issues with your 93 F150's fuel tank selector valve, it may be time to replace it. The fuel tank selector valve regulates and permits fuel movement between the front and rear tanks using a selector switch. This means that when one valve is switched on, the other is closed, and vice versa. Common signs of a faulty fuel tank selector valve include fuel leaks, electrical problems with the coil, and internal leaks from the valves.
Before attempting to replace the valve, it's important to take safety precautions as the reservoir fuel tank valves contain gas, which can pose fire and health hazards. It's recommended to work in a well-ventilated area free from any potential sources of fire.
The fuel tank selector valve can be located under the driver's side of the vehicle, mounted on the frame rail. Once located, you can purchase a replacement valve from auto parts stores or online retailers. It's important to ensure that the replacement valve is compatible with your vehicle's year, make, and model.
When purchasing a replacement valve, you may come across both OEM and aftermarket options. OEM (Original Equipment Manufacturer) parts are made by the vehicle's manufacturer, while aftermarket parts are produced by third-party companies. While OEM parts may be more expensive, they are guaranteed to fit your vehicle perfectly. Aftermarket parts can vary in quality, so it's important to do your research before purchasing.
Keep in mind that replacing the fuel tank selector valve may not always fix the issue. In some cases, the problem may lie with the check valve or shuttle valve in the rear Fuel Delivery Module (FDM). It's recommended to properly diagnose the issue before proceeding with any repairs.
| Characteristics | Values |
|---|---|
| Vehicle compatibility | Ford F-150, F-250 and F-350 1989-1997 |
| Replaces part number | F1UZ-9B263-B, F1UZ9B263B |
| Valve function | Regulates and permits fuel movement on front and rear tanks with the use of a selector switch |
| Installation | Should be done in a well-ventilated and fire-free workplace |
| Warranty | Lifetime |
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What You'll Learn
Locating the selector valve
To locate the selector valve, you can start by looking under the driver's side of your F-150. It is usually mounted on the frame rail, which is the side of the frame closest to the driver's door. By tracing the fuel lines, you should be able to spot the valve, which is described as a cylindrical object with six fuel lines connected to it.
It's important to note that some sources suggest that the 1993 F-150 does not have a selector valve, only the selector switch on the dash. However, other sources do provide instructions for replacing the selector valve on this model, so it's possible that there are different configurations or that this may vary depending on the specific model of your F-150.
Once you've located the selector valve, it's important to take the necessary safety measures before beginning the replacement process. The reservoir fuel tank valves contain gas, which can pose fire and health hazards. Ensure you are working in a well-ventilated area, and take the appropriate precautions to avoid any potential hazards.
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Removing the old valve
To remove the old valve from your 1993 F-150, you will first need to locate it. The fuel tank selector valve can be found under the driver's side of the vehicle, mounted on the frame rail.
Once you have located the valve, you will need to disconnect the fuel lines that are attached to it. Be very careful when doing this, as you will need to prevent fuel from leaking out of the lines. You may need to plug the lines to stop fuel from draining out.
Next, you will need to remove any bolts or screws holding the valve in place. There may be several bolts attaching the valve to the frame rail, so make sure you have the correct tools to remove them.
Once the bolts are removed, carefully lift the valve out of its mounting bracket. Again, be careful not to damage any fuel lines or other components during this process.
Finally, you will need to clean the area around the mounting bracket to remove any dirt, grease, or debris. This will ensure that the new valve is installed properly and can function correctly.
Now that the old valve has been removed, you can prepare to install the new valve by gathering the necessary tools and following the installation instructions provided with the new part. Remember to observe all safety measures when working with fuel system components.
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$282.41
Purchasing a new valve
When purchasing a new valve, it is important to ensure that it is compatible with your vehicle. In this case, you are looking for a fuel tank selector valve that fits a 1993 Ford F-150.
There are several options available on the market that will fit your vehicle, such as:
- The Replacement Reservoir Fuel Tank Selector Valve by AA Ignition, sold on Amazon, which is compatible with Ford F-150, F-250, and F-350 models from 1989 to 1997. This product has a lifetime warranty and is a direct replacement for the factory part, ensuring the same OEM fit, quality, and finish.
- The MasterPro Ignition 5 Terminal Fuel Tank Selector Valve, sold by O'Reilly Auto Parts, which is also compatible with Ford F-150 models from 1993. This product comes with a 1-year limited warranty and features a 6-port design.
- The Standard Ignition 5 Terminal Fuel Tank Selector Valve, also sold by O'Reilly Auto Parts, which is compatible with various Ford models, including the 1993 F-150. This product has a limited lifetime warranty and comes with a wiring harness and switch included.
When purchasing a new valve, it is important to consider the warranty, compatibility, and ease of installation. Additionally, it is recommended to refer to the factory repair manual when replacing the valve to ensure proper installation and safety.
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Installing the new valve
To install the new valve, first locate the old valve. In a 1993 F150, the valve can be found under the driver's side door on the inside of the frame. It is a black canister/fuel reservoir.
Once you have located the old valve, you will need to remove it. There should be eight 10mm bolts holding it in place. Remove these bolts and set them aside.
Next, you will need to remove the orange diaphragm from the top of the valve. There is one screw holding it in place. Remove this screw and set it aside.
Now, you should see a steel round plate. This is the part that determines whether the front or rear tank is being used. The steel plate should move up and down; when it is down, the front tank is being used, and when it is up, the rear tank is being used.
If the steel plate is not moving smoothly, you may need to clean it. Use a good penetrating fluid and spray it along the slides that hold the round plate. Work the plate up and down until it feels free and moves smoothly.
Once the steel plate is moving smoothly, put the valve back together. Make sure to use a good sealant designed for fuel and heat when resealing the top.
Finally, install the new valve in the same location as the old one. Make sure to follow any safety measures and work in a well-ventilated area.
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Testing the new valve
Locate the Fuel Tank Selector Valve: The fuel tank selector valve in your 1993 F150 is located under the driver's side of the vehicle, mounted on the frame rail. It is a cylindrical object with six fuel lines connected to it.
Prepare the Necessary Tools: You will need a self-powered test lamp or an ohmmeter, and possibly some tools to disconnect and reconnect the valve if it is not easily accessible.
Check the Valve Operation: Follow these steps to test the valve operation:
- Briefly apply 12V power to terminals 789 (BR/W) (+) and 786 (R) (-) of the selector valve connector.
- Connect the test lamp or ohmmeter to terminals 29 (Y/W) and 675 (Y/LB). A good switch will indicate a closed circuit.
- Now, connect the test lamp or ohmmeter to terminals 29 (Y/W) and 673 (DB/Y). A good switch will indicate an open circuit.
Test the Rear Tank Circuit:
- Briefly apply 12V power to terminals 789 (BR/W) (+) and 786 (R) (-) as mentioned earlier.
- Connect the test lamp or ohmmeter to terminals 29 (Y/W) and 675 (Y/LB). A good switch will indicate a closed circuit.
- Now, connect the test lamp or ohmmeter to terminals 29 (Y/W) and 673 (DB/Y). A good switch will indicate an open circuit.
Test the Front Tank Circuit:
- Briefly apply 12V power to terminals 786 (R) (+) and 789 (BR/W) (-).
- Connect the test lamp or ohmmeter to terminals 29 (Y/W) and 675 (Y/LB). A good switch will indicate an open circuit.
- Now, connect the test lamp or ohmmeter to terminals 29 (Y/W) and 673 (DB/Y). A good switch will indicate a closed circuit.
Check Fuel Transfer: Finally, check that the source and return valve transfer between the front and rear positions. You may hear a brief "zip" sound when the valve transfers.
If your new valve passes all these tests, you can be confident that it is functioning correctly. If you encounter any issues or unusual readings, it may be best to consult a professional mechanic for further advice.
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Frequently asked questions
The fuel tank selector valve is located on the side of the frame rail. It can be found under the driver's side door on the inside of the frame.
If you are experiencing fuel system problems such as electrical problems with the coil, internal leaks from the valves, and external fuel leaks, you may have a problem with your fuel tank selector valve.
Reservoir fuel tank valves contain gas from fuel tanks that can cause fires and pose health hazards. Installation needs to be done in a well-ventilated and fire-free workplace.
