
If your Ford Ranger has been sitting idle for a while, you'll need to drain the gas tank of old gas before you can get it back on the road. In this article, we'll take you through the steps to safely and effectively drain the fuel tank, including removing the fuel filter and dealing with residual pressure in the fuel lines. We'll also offer some tips on cleaning the injectors and share the experience of other Ford Ranger owners who have been through the same process.
How to drain a Ford Ranger fuel tank
| Characteristics | Values |
|---|---|
| Tools | Fuel filter, fuel lines, jumper, pump, relay, hand pump-style siphoning rig, metal clothes hanger |
| Steps | 1. Remove fuel filter. 2. Put gas in the tank and turn on the pump. 3. Install a new filter. 4. Run Seafoam in the fuel tank to clean the injectors. 5. Slide under the truck and remove the filler hose. 6. Use a hand pump-style siphoning rig to remove gas. |
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What You'll Learn

Removing the fuel filter
To remove the fuel filter from your Ford Ranger, you will first need to locate it. The fuel filter is located in the frame rail, approximately under the driver's seat.
Before you begin, it is important to take safety precautions. Ensure you are wearing appropriate protective gear, such as gloves and eye protection, and that you are working in a well-ventilated area. It is also crucial to relieve the fuel system pressure before removing the fuel filter. This can be done by turning the ignition key to the "on" position for a few seconds without starting the engine.
Now, let's go through the steps to remove the fuel filter:
- Disconnect the negative battery cable to prevent any accidental electrical discharge during the process.
- Place a suitable container under the fuel filter to catch any spilled fuel.
- Using the appropriate tools, carefully disconnect the fuel lines attached to the fuel filter. The new fuel filter you purchase may come with a plastic tool designed for this purpose, or you can ask your local parts store for a suitable tool. Be cautious, as there may still be pressure in the lines, and fuel may spray out.
- Once the fuel lines are disconnected, gently pull out the old fuel filter from its housing.
- Before installing the new fuel filter, inspect the fuel lines and O-rings for any signs of damage or deterioration. Replace any damaged components as necessary.
- Take the new fuel filter and ensure it is the correct replacement for your Ford Ranger. Refer to your owner's manual or consult a mechanic if you are unsure.
- Insert the new fuel filter into the housing, ensuring it is securely seated and properly aligned.
- Reattach the fuel lines to the new fuel filter, making sure they are securely connected and there are no leaks.
- Reconnect the negative battery cable once you have confirmed that the new fuel filter is installed correctly.
- Start the engine and check for any leaks or unusual noises. If everything appears normal, turn off the engine and re-inspect the fuel filter and lines for any signs of leaks.
Remember to dispose of the old fuel filter properly at a designated facility or according to your local regulations. Fuel filters contain residual fuel and can be harmful to the environment if not disposed of correctly.
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Using a plastic tool to remove fuel lines
To drain a Ford Ranger fuel tank, you will need to remove the fuel lines. This can be done using a plastic tool that often comes with a new fuel filter, which costs around $10-$15.
The first step is to locate the fuel filter, which is usually found in the frame rail, approximately under the driver's seat. Once you have located the fuel filter, follow these steps to remove the fuel lines:
- Place the plastic tool on the fuel line and slide it into the connector. This will release the clip, allowing the line to separate. Be cautious of any spraying fuel, as there may still be pressure in the line.
- Remove the safety clip from the fuel lines. The clip is attached to a small wire to prevent it from getting lost.
- Use a plastic tool with a hinged center section to fit around the fuel line. Slide the tool back to unseat the garter spring on the fitting, and pull back on the fuel line to separate them.
- Check the O-rings for any damage and replace them if necessary, using O-rings specific to the fuel system to avoid leaks.
It is important to note that some sources suggest that simply draining the fuel tank is not sufficient to address issues with old gas or sediment. It may be necessary to remove the tank entirely and have it professionally cleaned and sealed.
Additionally, when removing the fuel lines, be sure to inspect the retaining clip, fitting end, and connector for any damage. If the special clip tool is not available, narrow slip-jaw pliers can be used to compress the retaining clip and release the fitting.
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Cleaning the injectors
To clean the injectors of your Ford Ranger, you can use a product called Seafoam. This product helps to clean the injectors of any varnish that may have built up due to old gas residue. It is important to clean the injectors to ensure the fuel system is free of any built-up residue and to ensure the injectors are functioning optimally.
To begin the cleaning process, locate the injectors. They will be connected to the fuel rail, which is typically located on the engine, close to the fuel pump. The fuel rail is the metal tube that carries fuel from the pump to the injectors. You will need to remove any protective covers or components that may obstruct access to the injectors. Refer to your Ford Ranger's repair manual for detailed instructions on accessing the fuel system components.
Once you have located the injectors, you can start the cleaning process. Disconnect the electrical connector from the injectors, this will prevent any power from reaching them during the cleaning process. You will then need to remove the fuel rail and injectors as an assembly. This is usually done by removing the mounting bolts that secure the fuel rail to the engine. Be careful when handling the fuel rail and injectors, as they may be delicate. Place them in a clean, safe area where they will not be disturbed.
With the injectors removed, you can now focus on cleaning them. Use a suitable cleaning solution, such as Seafoam, to soak the injectors. Follow the instructions on the cleaning product's packaging for the appropriate soaking time and safety precautions. During the soaking process, the cleaning solution will help break down and dissolve any built-up varnish or residue. After the allotted time has passed, remove the injectors from the cleaning solution and allow them to air dry completely before reinstalling. Refer to your repair manual for the correct torque specifications when reinstalling the fuel rail and injectors.
Finally, once the injectors are clean and dry, you can reinstall them onto the fuel rail and remount the assembly back onto the engine. Reconnect the electrical connector to the injectors and start the engine. It is recommended to run the engine for a few minutes to circulate the cleaned injectors with fresh fuel. This process will help ensure that any remaining residue is flushed out and that the injectors are functioning correctly.
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Sliding under the truck to remove the filler hose
To drain old gas from a Ford Ranger, one method involves sliding under the truck to remove the filler hose. This process can be tricky, but it is a viable option if you want to avoid heavy lifting. Here is a step-by-step guide to help you through the process:
First, locate the filler hose. It is attached to the metal filler tube, which is usually found near the fuel tank. When you find it, make sure you have the necessary tools and safety equipment before beginning the removal process. Wear protective gear, such as gloves and eye protection, to shield yourself from any fuel or debris.
Next, you'll want to slide under the truck and get into a comfortable position to access the filler hose. This may require some maneuvering, so be cautious and ensure you have a clear and well-lit workspace. Once you are in position, grasp the filler hose firmly but carefully. You don't want to apply too much force and risk damaging any components.
To detach the filler hose from the metal filler tube, you may need to use a suitable tool to release the connector. This could be a plastic tool designed for removing fuel lines, which sometimes comes with new fuel filters. Alternatively, your local auto parts store should have these tools available at a low cost. When using the tool, be cautious of any residual pressure in the fuel lines, as fuel may spray.
After successfully detaching the filler hose, you can continue the drainage process. Using a hand pump-style siphoning rig, you can remove the old gas from the tank. To enhance the process, you can shape a metal clothes hanger to keep the hose straight, allowing you to extract as much fuel as possible. Place the hose over the hanger to maintain the desired shape.
By following these steps, you can effectively drain the fuel tank of your Ford Ranger by removing the filler hose from under the truck. Remember to take appropriate safety measures and have the necessary tools on hand before initiating the procedure.
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Using a hand pump to siphon
To drain old gas from a 1998 Ford Ranger, you can use a hand pump to siphon the gas from the tank. This method is detailed and involves some heavy lifting, but it is an effective way to drain the fuel tank.
Firstly, slide under the truck and locate the filler hose. This is attached to the metal filler tube, which is located under the driver's seat, in the frame rail. Be careful not to confuse this with the fuel line, which is a separate component. The filler hose is where you will attach your hand pump to siphon the gas.
Before attaching the pump, you will need to remove the filler hose from the metal filler tube. This can be tricky, and it is important not to try to remove the filler hose from the tank itself, as this will be difficult and messy. Once you have successfully detached the filler hose, you can attach your hand pump.
Cheap hand pump-style siphoning rigs are readily available and perfect for this task. Attach the pump to the filler hose and prepare to start pumping. To get the most fuel out of the tank, you can straighten a metal clothes hanger and shape it to keep the hose straight. Slide the hose over the hanger once you have achieved the desired shape.
Now, you are ready to start pumping. Ensure you are careful and methodical, and be prepared for the physical effort required to pump the fuel out. This process may take some time, but it is an effective way to drain the fuel tank of your Ford Ranger.
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Frequently asked questions
There are a few methods to drain old gas from a Ford Ranger. One method is to slide under the truck and remove the filler hose where it attaches to the metal filler tube. Once the filler hose is loose, you can use a cheap hand pump-style siphoning rig to drain the gas.
You will need a plastic tool to remove the fuel lines, which often comes with a new fuel filter. You can purchase one from a parts store for a couple of dollars if it doesn't come with your new filter.
It is recommended to replace the fuel filter and run some Seafoam in the fuel tank to clean the injectors.











































