
If you need to drain the fuel tank of your 2005 Subaru Legacy, there are a few methods you can try. One option is to use a hand pump to drain the tank through the filler tube connection. Another method involves removing the fuel pump fuse under the hood, starting the engine until it dies, cranking it for a few seconds, and then removing the gas cap. Additionally, you can try to cycle the pump by turning the key on and off to get all the fuel out, or put the car into test mode to cycle the pump automatically. Keep in mind that some Subaru models have a drain plug on the right side of the tank, so you may want to check if your 2005 Legacy has one as well.
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What You'll Learn

Removing the fuel pump fuse and starting the engine until it dies
To drain the fuel tank of a 2005 Subaru Legacy, one method you can try is to remove the fuel pump fuse and start the engine until it dies. Here's a step-by-step guide on how to do it:
Firstly, locate the fuel pump fuse. In most Subaru models, including the 2005 Legacy, the fuse box is located under the hood, near the back of the engine bay. The fuel pump fuse is usually a small, rectangular component with a plastic housing. You can identify it by checking the fuse box diagram, which is often located on the inside of the fuse box cover or in the owner's manual. Make sure you have the correct fuse by verifying the fuse number and amperage rating.
Once you've located the fuel pump fuse, remove it by pulling it straight out of the fuse box. In some cases, you may need to use a small tool, like a fuse puller or a pair of pliers, to gently remove it without damaging the surrounding components. It's important to be careful during this step to avoid any accidental damage.
After removing the fuel pump fuse, get inside the car and turn the ignition key to the "On" position without starting the engine. This will activate the fuel pump and build up pressure in the fuel lines. You may hear the fuel pump priming, which is a normal sound during this process.
Now, try to start the engine by cranking it for a few seconds. With the fuel pump fuse removed, the engine will not be able to receive fuel, and it will eventually stop cranking and die. You may need to attempt this step a few times until the engine completely stops turning over.
At this point, the fuel lines should be depressurized, and you can proceed to the next steps of draining the fuel tank. It is important to note that this method may not drain all the fuel from the tank, but it will significantly reduce the pressure and make the process safer. Remember always to place an approved container under the drain plug to catch the fuel and to take the necessary safety precautions when working with flammable liquids.
Additionally, always refer to your owner's manual or seek advice from a qualified mechanic if you have any doubts or concerns about the process.
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Locating the drain plug on the right side of the tank
To locate the drain plug on the right side of the tank of your 2005 Subaru Legacy, you will first need to take off the gas cap from the fill tube. This will stop the gas from flowing out of the hose.
Next, you will need to locate the cover for the drain plug on the right side of the tank. Take this cover down, and you will see the drain plug. Before attempting to loosen the drain plug, it is recommended to apply some PB Blaster to it and let it sit for a while.
It is important to note that some Subaru models may have a plastic flapper valve or a check valve at the end of the tube where it enters the tank. This valve is designed to prevent gas gerd during a car roll-over. If your vehicle has this valve, you may need to take extra precautions to avoid damaging it during the draining process.
Additionally, if you have a significant amount of fuel in the tank, you may want to consider relieving the pressure before attempting to drain it. One method is to pull the fuel pump fuse under the hood, start the engine until it dies, crank it for a few seconds, and then attempt to drain the fuel.
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Using a hand pump to drain the tank via the filler tube connection
To drain the fuel tank of a 2005 Subaru Legacy using a hand pump via the filler tube connection, follow these steps:
First, locate the filler tube. This is usually found at the top of the fuel tank and is where you would typically fill up your car with gas. Remove the gas cap from the filler tube to provide access to the tube.
Next, you'll need to relieve the pressure in the fuel system. To do this, locate the fuel pump fuse, which is usually found under the hood of your car. Remove this fuse, then attempt to start the car. The engine will turn over but not start, and this action will help to reduce the pressure in the fuel lines.
Now, you can attempt to drain the fuel using a hand pump. Place the end of the hand pump into the filler tube and begin pumping. You may need to prime the pump by first ensuring that the pump is filled with fuel. This can be done by temporarily submerging the end of the pump in a container of fuel, then pumping to draw the fuel up and into the pump mechanism. Once the pump is primed, you can continue pumping to drain the fuel from the tank.
It is important to note that you should always use an approved container to collect the drained fuel and take appropriate safety precautions when working with flammable liquids. Additionally, some vehicles may have a check valve or flap valve in the filler tube to prevent the tank from draining in a rollover. If you encounter this, you may need to carefully remove or bypass this valve to successfully drain the tank.
Finally, once you have drained the desired amount of fuel, be sure to replace the gas cap on the filler tube securely.
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Removing the fuel tank from the car to drain it
To drain your 2005 Subaru Legacy's fuel tank, you will need to remove the fuel tank from the car. Here is a step-by-step guide on how to do this:
Firstly, locate the fuel pump fuse under the hood of your car and remove it. Then, start the engine and let it run until it dies. You may need to crank the engine for a few seconds to ensure it is completely turned off.
Next, remove the gas cap from the filler tube. This will stop the fuel from flowing out of the hose. Now, you can access the fuel tank. The tank is typically located at the bottom of the car, towards the rear. You may need to raise the car on a lift or jack stands to access it safely.
Once you have located the fuel tank, you will need to remove the necessary components to access the drain plug. The drain plug is usually located on the right side of the tank. Remove the cover to expose the drain plug. It is recommended to use a suitable penetrant, such as PB Blaster, on the drain plug and let it sit for a while before attempting to loosen it.
Finally, you can remove the drain plug and start draining the fuel into an approved container. Be very careful during this step as gasoline is highly flammable and toxic. Ensure you are wearing appropriate safety gear, including gloves and eye protection.
Additionally, you can also try other methods to drain the fuel tank without removing it. One method is to use a hose and a Mighty Vac to siphon the fuel out through the connector with a clamp. Another method is to cycle the pump by turning the key on and off to empty the tank. Always refer to your car's manual for specific instructions and safety precautions.
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Cycling the pump by turning the key on/off to empty the tank
One way to drain the fuel tank of a 2005 Subaru Legacy is by cycling the pump by turning the key on and off until the tank is empty. This method can be done without any tools and is a good alternative to manually draining fuel through the filler tube or disconnecting the fuel line.
To begin the process, locate the fuse box under the hood of your Subaru Legacy. Find the fuel pump fuse and remove it. This will prevent the pump from working, so the engine will not be able to draw fuel from the tank.
Next, insert your key into the ignition and turn it to the "on" position. This will activate the fuel pump, but since the fuse has been removed, no fuel will be drawn from the tank. The engine will attempt to start but will not be able to due to the lack of fuel.
At this point, you can turn the key back to the "off" position. Repeat this process of turning the key on and off several times. Each time you cycle the ignition, the fuel pump will attempt to send fuel to the engine, gradually emptying the tank.
It may take several cycles to fully drain the tank, depending on the amount of fuel remaining. Be sure to have a container ready to catch any fuel that may spill or leak during the process. Always exercise caution when handling flammable liquids like gasoline.
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Frequently asked questions
There are a few ways to drain the fuel tank of your 2005 Subaru Legacy. One way is to pull the fuel pump fuse under the hood, start the engine until it dies, crank it for 5 seconds, and then remove the gas cap. Another way is to use a Mighty Vac to siphon the fuel into an approved container through the connector with a clamp on the hose.
The drain plug is located on the right side of the tank.
The old-fashioned method of draining the fuel tank involves dropping the muffler and tail pipe to access the filler tube connection and draining the tank with a hand pump.
To stop the fuel from flowing out of the hose, simply remove the gas cap from the fill tube.










































