
If you're looking to replace the fuel filter in your 1985 Ford Ranger, you've come to the right place. This job can be dangerous, so it's important to take the necessary precautions and follow the correct steps. Firstly, ensure you have safety goggles to protect your eyes from any fuel spray. Next, locate the fuel filter on the driver's side frame rail, usually under the driver's seat or slightly behind it. Disconnect the fuel pump power by opening the fuse box and removing the fuel pump fuse while the truck is running. This will relieve the pressure in the system. Now, you can remove the old filter by pushing in the connectors and pulling back the hoses. Finally, install the new filter by sliding the filter tubes into the connectors, securing them, and snapping the filter into place.
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What You'll Learn

Wear safety goggles to protect your eyes from fuel spray
When working on your 1985 Ranger, it is important to wear safety goggles to protect your eyes from fuel spray. Safety goggles are a critical safety precaution and can prevent eye injuries, from mild irritation to blindness.
There is still pressure in the fuel system, and it will spray out. This can be dangerous if it comes into contact with your eyes. Goggles will provide a protective barrier, ensuring that the fuel does not reach your eyes.
It is also important to be mindful of other safety precautions when working with fuel. This includes wearing safety shoes or boots with slip-resistant soles and having a fully charged fire extinguisher nearby. Additionally, practicing good personal hygiene, such as washing your hands regularly and avoiding touching your eyes, nose, or mouth, can help prevent exposure to hazardous substances.
Safety goggles are an essential piece of personal protective equipment (PPE) and should not be considered a luxury when working with fuel. They are specifically designed to protect your eyes from chemicals, flying objects, and airborne particles. By wearing safety goggles, you can avoid potential hazards and create a safer work environment.
Always remember to put your safety first when working on your 1985 Ranger or any other vehicle. Eye protection is crucial, and safety goggles are an effective way to safeguard your eyes from fuel spray and other potential dangers.
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Disconnect the fuel pump power by opening the fuse box and pulling out the fuel pump fuse
To disconnect the fuel pump power in a 1985 Ranger, you must first open the fuse box. The fuse box is located under the hood. While the truck is running, pull out the fuse for the fuel pump, and the truck will stall out. This will relieve the pressure in the system.
It is important to relieve the pressure in the fuel system before disconnecting the fuel lines. This can be done by cycling the ignition several times (around 4) with it in the on position for a few seconds. The fuel pump shuts off automatically after a few seconds when the ignition is turned on without starting the engine. So, cycling only once will not build up full pressure.
Before disconnecting the fuel lines, it is recommended to use a clean cloth rag to clean the Quick Disconnects. If you live in a region with high salinity, there may be a touch of rust present.
To disconnect the fuel lines, locate the Fuel Inertia Switch, which is found by the panel your passengers might put their feet against, just under the glove box. It is about 1 inch square and has wires connected to the bottom. Use a small flathead screwdriver to disconnect the wire connector.
Now, you can remove the old filter. It is extremely important to wear eye protection during this step, as there is still pressure in the fuel system, and it can spray out.
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Disconnect the fuel lines
Disconnecting the fuel lines of your 1985 Ranger is a straightforward process, but it requires careful attention to safety precautions. Here is a detailed guide on how to do it:
Safety First:
Before you begin, it is important to relieve the pressure in the fuel system. Crank the engine a few times without starting it to release the pressure. Wear safety goggles to protect your eyes, as there may still be slight pressure in the lines, and fuel could spray out.
Locate the Fuel Filter:
The fuel filter on a 1985 Ranger is typically located on the driver's side frame rail, under the driver's seat or slightly behind it. It is usually mounted near the fuel tank, just in front of it on the frame rail.
- Place a drain bucket underneath the fuel filter to catch any spills or leaks.
- Using a flat-blade screwdriver, press down on the colored tabs (usually orange and green) on the fuel line connectors.
- Push the lines toward the filter, then squeeze, and carefully pull them out.
- Remove the single side line first, as it is easier to remove with the filter still in its clamp.
- Pull the filter out of its clamp and remove the other two lines.
- Ensure you do not pull on the connectors, as they may break. If needed, use a screwdriver to push them gently.
- If you have long fingernails, you may find it easier to use your fingers to push and pull the lines.
- Clean the Quick Disconnect fittings with a clean cloth rag to remove any dirt or rust.
By following these steps, you can safely disconnect the fuel lines from your 1985 Ranger's fuel filter. Remember to work carefully and wear the appropriate safety gear to protect yourself and those around you.
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Remove the old filter
Before removing the old fuel filter, ensure you are wearing the proper safety equipment, such as safety goggles or glasses, and have a drain bucket ready. The fuel filter in a 1985 Ford Ranger is located on the driver's side frame rail, under the driver's seat or slightly behind it, mounted near the fuel tank.
To remove the old filter, first relieve the pressure in the fuel system. You can do this by disconnecting the fuel pump power: open the fuse box under the hood and pull out the fuse for the fuel pump while the truck is running. The truck will stall out, relieving the pressure. Alternatively, you can cycle the ignition several times (around 4) with it in the 'on' position for a few seconds.
Once the pressure is relieved, you can start to disconnect the fuel lines. On 2004 and newer trucks, you will see either a green or orange thing on the fuel line connectors. Push these in and pull the hoses back. You may need to use a screwdriver for leverage.
Next, remove the single side line. Pull the filter out of its clamp and remove the other two lines. Push the line towards the filter, then squeeze, then pull out. You can now remove the old filter from the clamp.
Finally, inspect the old filter. Cut it open with a hacksaw and inspect the paper filter. This will give you an idea of how often you should change your fuel filter.
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Insert the new filter
Now that you've disconnected the fuel pump power and removed the old filter, it's time to insert the new one.
First, remove the caps on the new fuel filter. Insert the new filter into the forward hose first. Push down on that connector. If it's still popped up, make sure it locks in. The orange hose goes on the skinnier pipe, and the green hose goes on the larger pipe. Ensure that both have locked in securely.
Line up the tab and insert the stud on the fuel filter through the frame rail. Now, you can crank the engine for 20-30 seconds. Ensure that you're wearing safety goggles as there may still be pressure in the fuel system.
Finally, note the direction your existing filter is facing so that you can install the new one in the same way.
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Frequently asked questions
The fuel filter is located on the driver's side frame rail on the inside. It should be under the driver's seat or a little further back.
Wear safety goggles or glasses to protect your eyes from any fuel spray. Ensure you have a drain bucket underneath the filter before you start.
Disconnect the fuel pump power by opening the fuse box under the hood and pulling out the fuse for the fuel pump while the truck is running.
Remove the old filter by pushing in the green or orange thing on the fuel line connectors and pulling the hoses back.
Insert the new filter into the forward hose first, then push down on the connector. Insert the orange hose on the skinnier pipe and the green hose on the larger pipe, ensuring they lock in securely.











































