Katerina Swanson
Removing gas lines from a fuel pump can be a tricky task, and many Bronco owners have faced challenges when attempting to do so. Some have turned to online forums for advice, with some suggesting the use of specific tools such as metal or plastic disconnect tools, while others recommend bending a thin piece of metal to release the springs. In some cases, it may be necessary to cut the fuel pump access panel or the fuel filter itself to gain access to the gas lines. This process can vary depending on the model year of the Bronco, with older models having fuel lines that are easier to remove.
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What You'll Learn
Disconnecting the battery and filler hose
Disconnecting the Battery
Before beginning any work on your Bronco's fuel system, it is essential to disconnect the battery. This is a critical safety precaution as it helps prevent any potential sparks that could ignite fuel vapors. Park your Bronco on a level surface and engage the parking brake. Locate the negative terminal of the battery, which is usually marked with a "-" sign or black color. Using an appropriate-sized wrench or socket, loosen the nut or bolt securing the negative battery cable. Carefully remove the cable from the battery terminal. Ensure that the cable does not touch any metal parts of the vehicle to avoid any accidental electrical shorts.
Disconnecting the Filler Hose
The next step is to disconnect the filler hose, which carries fuel from the gas tank to the engine. Start by ensuring that the fuel tank is as empty as possible to reduce weight and minimize the risk of fuel spillage. Locate the filler hose, which is usually connected to the fuel tank and the fuel pump. Using appropriate tools, carefully loosen any clamps or couplings securing the filler hose in place. Gently pull the hose away from the fuel tank and fuel pump connections. It is important to note that different Bronco models may have slight variations in the filler hose setup, so refer to a repair manual specific to your Bronco's year and model for precise instructions.
Once the filler hose is disconnected, you will have better access to the fuel pump and gas lines. This step is crucial as it provides the necessary space and maneuverability to work on the fuel system safely. Remember to place the disconnected filler hose in a safe location away from direct heat or sources of ignition.
Additional Precautions
When working on the fuel system, it is essential to exercise extreme caution. Ensure proper ventilation in the work area to prevent the buildup of fuel vapors. Avoid smoking or any open flames during the entire process. Wear protective gear, such as gloves and eye protection, to safeguard against fuel spills or splashes. It is also recommended to have a fire extinguisher nearby as an extra safety measure.
By following these steps and guidelines, you can safely and effectively disconnect the battery and filler hose as part of the process of removing gas lines from the fuel pump of your Bronco. Remember to refer to specific repair manuals or seek advice from qualified mechanics if you have any doubts or questions during the process.
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Removing the skid plate and tank straps
Firstly, ensure that there is as little fuel in the tank as possible to minimize weight. This will make the process of removing the tank and its components much easier. Next, locate the skid plate and tank straps, which are positioned beneath the vehicle and hold the tank in place. Using the appropriate tools, carefully unbolt the skid plate. This will grant you better access to the fuel tank and its components.
Once the skid plate has been removed, you can proceed to unbolt the tank straps. These straps secure the fuel tank in place, so it is important to work cautiously to avoid any accidental damage to the tank or surrounding components. With the tank straps removed, you will now be able to lower the fuel tank.
It is recommended to use a cart with a hydraulic lift to make the tank removal process easier, especially if your Bronco is lifted. This will provide a stable platform to work on and reduce the risk of accidental damage. Additionally, always refer to the vehicle's service manual for specific instructions and safety precautions related to your particular model.
By carefully following these steps, you will be able to successfully remove the skid plate and tank straps, providing access to the fuel pump and other components for maintenance or replacement. Remember to work cautiously and seek professional advice if you are unsure about any part of the process.
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Using a fuel line disconnect tool
To remove gas lines from the fuel pump of a Bronco, you will need a fuel line disconnect tool. This can be made of plastic or metal, and can be purchased from a local auto store.
Before attempting to disconnect the fuel lines, it is important to wash the dirt out of the fittings. A pressure washer can be used for this purpose. Once the fittings are clean, push the fuel line hard into the connector and twist the connector side to side to free the teeth inside.
- Wash and dry the top of the pump plate before disconnecting the lines or loosening the lock ring.
- Push the fuel line hard onto the fitting (pump or filter) to relieve the catches.
- Rotate the fuel line to break the O-rings loose.
- Insert the release tool as far as it will go to open the catches.
- Hold the tool hard against the stop ring while working the line off the tool and fitting.
- If necessary, rinse the dirt out of the line end to allow the catches to open.
It is important to note that the blue supply lines are typically 3/8", while the gray return lines are 5/16". Additionally, only clean motor oil should be used as a lubricant for fuel system O-rings. Silicone grease should not be used as it does not dissolve in gas and can block the fuel filter and/or injector screens.
In some cases, the fuel line itself may be stiff, making it difficult to remove the connector. In this case, it may be necessary to use a combination of tools, such as metal or plastic scissor-type tools, to remove the fuel line. Additionally, it is recommended to depressurize the fuel line before attempting to remove it to avoid any safety hazards.
If the fuel filter is difficult to remove, it may be necessary to cut it with bolt cutters and use a pick set to take it apart. Alternatively, a small piece of metal can be bent to release the springs, as shown in some YouTube videos. However, this method may not work for all models.
Overall, while removing gas lines from the fuel pump of a Bronco can be challenging, it can be accomplished with the right tools, patience, and persistence.
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Cleaning the fuel line connectors
To clean the fuel line connectors of your Bronco, you will need to first disconnect the fuel lines. This can be done by washing and drying the top of the pump plate and then pushing the fuel line hard onto the fitting. Rotate it to break the O-rings loose. While holding it on the fitting, insert a release tool as far as it will go to open the catches. Work the line off the tool and fitting.
You may need to rinse the dirt out of the line end to allow the catches to open. Blue supply lines are 3/8", while gray return lines are 5/16". It is recommended to use a pressure washer to wash the dirt out of the fittings.
If you are having trouble disconnecting the lines, you can try using a different tool. Some people have found that the plastic tools work better than the metal ones. You can also try spraying inside the connector body to free up any gunk and then try again.
Once the fuel lines are disconnected, you can clean the connectors. It is important to note that you should never use any lubricant on the fuel system, especially not silicone grease. Instead, you can try using motor oil on the connector. Pour a small amount into the mouth of the tube and let it sit for about 15 minutes before trying to remove the connector.
Another option is to use carb cleaner or brake cleaner in the fittings to clean them. You can also try using a wide flat-head screwdriver to remove the connectors, being careful not to damage them.
If your Bronco is a 1986-1989 model that was sold in Canada, it may have a fuel tube that is prone to leaking. In this case, you will need to replace the fuel line with a new stainless steel-reinforced Teflon fuel line.
It is also worth noting that some people have found that the type of fuel filter used can affect the difficulty of removal. Non-Ford filters may be more difficult to remove, so it is recommended to use a Ford filter if possible.
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Replacing the fuel pump module
To replace the fuel pump module in a Bronco, you will need to first clean the area underneath the tank. You will then need to disconnect all electrical connectors and metal/rubber hoses going to the fuel pump.
Next, you will need to remove the tank. To do this, ensure that there is as little fuel in the tank as possible to minimize weight. Then, remove the filler hose, tank straps, and protective skid plate, which should be all that is holding the tank in place.
Once the tank is out, you will need to slide the locking ring and remove it using a screwdriver and hammer/mallet. Be careful not to create any sparks. You will then need to maneuver the fuel pump to get the float and sock out. Undo the two bolts and cut the wires off the fuel pump. You will need to splice the new fuel pump wires onto the sender unit.
Finally, remove the pump from the sender unit and install the new unit. You will need to unbolt the old module and snip the two wires. The new unit should come with a new sock strainer and fuel tank gasket, which you will need to replace.
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Frequently asked questions
To remove the gas lines from the fuel pump in your Bronco, you will need to first drain the tank to minimize weight. Then, remove the filler hose, tank straps, and protective skid plate. Next, disconnect the gas lines from the sending unit. Finally, loosen the retaining ring and pull out the old pump.
You will need a wide flat-head screwdriver to remove the gas lines from the sending unit. You may also need a release tool to open the catches.
You will need to replace the fuel tank gasket and the sock strainer that goes over the bottom of the fuel pump housing.
Try using a plastic tool instead of a metal one. You can also try bending a thin piece of metal to release the springs, as suggested in a YouTube video.
Signs that your Bronco's fuel pump may need to be replaced include a loud fuel pump whine, a drop in power under heavy throttle, and a clogged filter.
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