
The fuel filter in a Ford Ranger is located under the driver's frame rail, on the inside, about where the seat is. It is a simple process to replace the fuel filter, but it is important to take safety precautions such as wearing safety goggles and having eye wash handy. It is also recommended to disconnect the fuel shut-off relay and crank the engine a few times to relieve pressure. Additionally, it is advised to cycle the ignition several times before starting the car to build up pressure. However, some users have reported issues with starting their Ford Ranger after changing the fuel filter, which may be due to airlocks or other mechanical issues.
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What You'll Learn

Ensure safety goggles are worn
When working on your Ford Ranger, it is extremely important to wear safety goggles. Fuel is a hazardous substance that can cause serious harm if it comes into contact with your eyes. Even a small amount of fuel spray can result in eye irritation or injury.
Always wear safety goggles before beginning any work on the fuel system. Ensure that the goggles fit properly and provide adequate coverage for your eyes. If you prefer, you can opt for full-wrap-around safety glasses, but goggles are highly recommended as they offer better protection.
It is crucial to prioritize safety throughout the process of changing the fuel filter. Before starting, park your truck on level ground to ensure stability and prevent accidental rolling. Disengage the parking brake to allow for slight movement if needed. Turn off the engine and disconnect the battery to eliminate the risk of electrical sparks igniting fuel.
Additionally, always work in a well-ventilated area to minimize the risk of inhaling fuel fumes, which are flammable and hazardous. Keep a container for fuel nearby to catch any spills or leaks, and have clean rags ready to wipe up any spilled fuel immediately. Remember, your safety should always come first when working on your vehicle.
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Disconnect fuel lines
Disconnecting the fuel lines of a Ford Ranger can be a tricky process. It is important to relieve the pressure in the fuel system before disconnecting the fuel lines to avoid any safety hazards. Safety goggles should be worn to protect your eyes from any fuel splashes.
There are a few different methods to disconnect the fuel lines, depending on the tools available and the specific model of the Ford Ranger. For example, for some models, you can simply pinch the coloured "easy connect" fittings with your fingers and pull them apart. However, for other models, you may need to use a special tool, such as the Ford Tool T90T-9550-B or C or an equivalent, to remove the retaining clips. This tool is designed to relieve the pressure and allow the connection to be pulled apart.
If you do not have access to the special tool, another method is to use a pair of narrow 6-inch slip-jaw pliers with a jaw width of 0.2 inches (5mm) or less. Align the jaws of the pliers with the openings of the fitting case and compress both sides of the retaining clip simultaneously to disengage it from the connector.
Another method is to use a metal paint can lid remover, which can be useful in tight working areas. This method involves holding pressure on the green tab with a flat-blade screwdriver while pushing the gas line forward and then pulling it backward. It is important to continue holding down the tab until the line comes off.
In some cases, the fuel lines may be difficult to separate, and it may be necessary to apply some force or wiggle the lines to remove them. Additionally, it is recommended to inspect the O-rings for damage and replace them if necessary with specific O-rings designed for fuel systems.
Overall, while disconnecting the fuel lines of a Ford Ranger can be challenging, following the appropriate safety precautions and utilizing the correct tools and techniques will help ensure a successful outcome.
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Locate the filter
To locate the fuel filter in your Ford Ranger, look on the driver's side frame rail under the back of the cab. You should see a metal can about the size of a pop can. That is your fuel filter. It should be about a foot or two behind the front wheel.
If you have a 2019 Ranger, there may not be a fuel filter. One source suggests that there is no fuel filter listed for the Ranger in the manual or parts department. However, some people find it hard to believe that there isn't a fuel filter, especially considering the amount of pressure generated for the DI system to function.
For older models, you may need a special tool to disconnect the fuel lines. You can purchase a fuel line disconnect tool from an auto parts store.
It is important to relieve the pressure in the fuel system before attempting any work on the fuel filter. This can be done by cycling the ignition several times with it in the "on" position for a few seconds. You can also disconnect the fuel shut-off relay, which is found behind the passenger kick panel, and crank the engine a few times.
Always wear safety goggles or glasses when working on the fuel filter, as there is still pressure in the lines, and fuel may spray out.
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Remove the filter
Before removing the filter, it is important to relieve the pressure in the fuel system. Always wear protective goggles or safety glasses to shield your eyes from any splashes of gas.
The fuel filter is located under the driver's frame rail, on the inside, about where your seat is. It is a metallic canister, slightly smaller than a 12-ounce beverage can.
To remove the filter, first, disconnect the fuel pump's fuse with the engine running. This will cause the truck to stall and relieve some of the pressure. Next, push in the green or orange tabs on the fuel filter, and gently pull the lines off.
If your Ford Ranger is a 2011 model, you can simply squeeze the opposing push buttons and pull the line away. It is recommended to remove the line towards the back of the truck first as it is easier to access and allows the filter to be bent downward to drain the gas into a suitable container.
Once the single-side line is removed, pull the filter out of its clamp and then remove the other lines. If your truck was built before 2004, you may need a special fuel filter tool.
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Install the new filter
Before installing a new fuel filter, it is important to relieve the pressure in the fuel system and wear protective goggles or safety glasses to protect your eyes from any fuel spray.
Now, to install the new filter, first, make sure the new filter is facing the right way. Some new filters may have an arrow marked on them to indicate the direction. Note the direction in which the old filter was facing, and install the new one in the same way.
Next, slide the filter tubes into the Quick Disconnect fittings. You may need to use a metal Quick Disconnect tool for this step. Put the two halves of the tool around the fuel filter tube, and slide them into the fuel fitting. If there is not enough space to slide the tool in at once, put one half in first, then the other. You can tap the tool gently with a hammer if it is stuck.
Once the tool is in place, carefully hold the fuel line with a pair of pliers. Pull the filter out while pressing the disconnect tool into the fitting. You may lose some fuel when the filter is unhooked, so be prepared to cap it with the caps from the new filter.
Finally, give the filter tubes a tug to ensure they are firmly in place. Replace the spring retainer clips, and snap the new filter back into the clip on the frame.
You can now try starting your Ford Ranger. Put the key in the ignition, and turn it to the accessory position for a minute before cranking the engine. If your vehicle has a Fuel Inertia Switch, remember to plug it back in before attempting to start the engine.
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Frequently asked questions
Try loosening a fuel line nut from the fuel rail by about two turns, then crank the engine for about 10 seconds. If this doesn't work, disconnect a fuel line and crank the engine with a cup under it until diesel starts coming out. If it still doesn't start, it may need a professional diagnosis.
It could be a clogged sock/filter or a poor fuel pump ground. Try lightly tapping on the starter solenoid with a hammer. If it's a filter problem, the engine will crank but not fire as fuel won't be able to get past the clog.
You will need safety goggles or safety glasses, a clean cloth rag, and a metal quick-disconnect tool. If your truck was built before 2004, you may also need a special fuel filter tool.
The fuel filter is located under the driver's frame rail, on the inside, about where the driver's seat is.
To disconnect the fuel lines, squeeze the spring retainer clips and twist them to release the tab and slot that holds them together. Then, gently hold the fuel line with pliers and pull the filter out while pressing the disconnect tool into the fitting.


























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