Rajan Wilcox
If you need to drain the fuel tank of your Toyota Avensis, there are a few methods you can try. One way is to siphon the fuel out through the filler neck. Alternatively, you can remove the pump relay from behind the passenger footwell trim and short out the power side with a piece of wire to make the pump run continuously. You can then disconnect the pipe in the engine bay and let the pump drain the tank. Another method is to open the quick disconnect under the hood, remove the relay, and jump the power wires to pump out the fuel. You can refer to the fuel line and relay location in the circuit open in the main fuse box.
How to Drain a Toyota Avensis Fuel Tank
| Characteristics | Values |
|---|---|
| Most straightforward way | Siphon out through the filler neck |
| Other methods | Remove the pump relay from its socket behind the passenger footwell trim/kick panel and short out the power side with a piece of wire to make the pump run all the time. Disconnect the pipe in the engine bay and put it into a suitable container whilst the pump drains the tank |
| Alternative method | Open the quick disconnect under the hood, remove the relay and jump the power wires to pump out the fuel |
| Fuel line and relay location | http://www.toyotanation.com/forum/1...iy-2002-2011-gen-5-5-5-gen-6-6-5-camry-injector-flush-using-oem-kit-w-pics.html |
| Fuel treatment | Chevron Techron Concentrate, Gumout Regane, and BG44K get the best reviews |
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What You'll Learn
Siphoning through the filler neck
To drain your Toyota Avensis fuel tank through siphoning from the filler neck, you will need to follow these steps:
First, locate the filler neck. This is usually found under the car, behind the passenger seat. Once you have located the filler neck, you will need to remove the filler cap. Place a suitable container underneath the filler neck to collect the fuel.
Next, you will need a siphon pump. These are available at most auto parts stores. Ensure that the siphon pump is designed for fuel, as gasoline is highly flammable and requires a specialised pump. Attach the siphon pump to the filler neck and begin pumping to create suction. Place the other end of the hose into your container, and the fuel will begin to drain out.
It is important to take the proper safety precautions when handling gasoline. Ensure you are in a well-ventilated area and avoid any open flames or sparks. Wear protective clothing, such as gloves and eye protection, to shield yourself from any potential splashes.
Siphoning can be a time-consuming process, so it is recommended to work slowly and carefully to avoid any spills or accidents. Ensure that children and pets are kept away from the work area. Once the fuel has been drained, replace the filler cap and dispose of the gasoline safely and responsibly.
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Removing the pump relay
After removing the pump relay, you can proceed to the next step of shorting out the power side. This can be done by using a piece of wire to make the pump run continuously. This step is crucial to ensure the pump drains the tank effectively.
It is important to exercise caution and consult a professional if you are unsure about any aspect of the process. Working with fuel and electrical components can be dangerous if not performed correctly.
Once the pump relay has been removed and the power side has been shorted out, you can move on to the next steps in the fuel tank draining process. Remember to refer to a reliable guide or seek advice from a qualified mechanic to ensure a safe and successful fuel tank draining procedure.
Additionally, it is worth noting that there are alternative methods to drain the fuel tank of a Toyota Avensis. One such method is to siphon the fuel out through the filler neck. This approach may be more suitable for those who feel uncomfortable with removing the pump relay or are facing challenges in locating the relay. However, removing the pump relay remains a viable option for those who wish to take a more direct approach to draining the fuel tank.
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Disconnecting the pipe in the engine bay
It is important to have a suitable container ready to collect the fuel. This process will allow you to completely drain the fuel tank in your Toyota Avensis. Remember always to take the necessary safety precautions when working with fuel and vehicle systems.
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Draining from underneath the car
Draining a Toyota Avensis fuel tank from underneath the car is a straightforward process. Here is a step-by-step guide:
Step 1: Access the Fuel Tank
Locate the fuel tank under the car. It is usually found at the rear of the vehicle, close to the rear axle. Ensure you have adequate lighting and space to work comfortably. Place a suitable container under the fuel tank to collect the drained fuel.
Step 2: Remove the Drain Plug
Using the correct size wrench or socket, locate and remove the drain plug from the fuel tank. This will vary depending on your model, but it is typically located at the bottom of the fuel tank. Place a drip pan or container under the drain plug to catch any initial fuel spillage.
Step 3: Allow the Fuel to Drain
Once the drain plug is removed, allow the fuel to drain completely from the tank. This may take several minutes, depending on the amount of fuel remaining in the tank. Ensure that the collection container is large enough to hold the drained fuel and that it is securely placed to avoid any spillage.
Step 4: Replace the Drain Plug
After the fuel tank is empty, carefully replace the drain plug. Ensure it is tightened securely to prevent any leaks. Clean up any spilled fuel with appropriate absorbent materials, following local disposal guidelines.
Step 5: Refill and Restart
Now that the fuel tank is drained, you can refill it with fresh fuel. Consult your owner's manual or a mechanic for guidance on the appropriate type and grade of fuel for your Toyota Avensis. Once the tank is refilled, you can restart the car and verify that it is running properly.
Draining your Toyota Avensis fuel tank from underneath the car involves removing the pump relay and draining the tank, which is a relatively straightforward process. However, it is important to exercise caution when working with fuel to ensure safety.
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Opening the quick disconnect under the hood
To open the quick disconnect under the hood of a Toyota Avensis, you will need to locate the fuel line and relay location (circuit open in the main fuse box).
Firstly, open the hood and locate the fuel line and relay in the engine bay. You can refer to the following link to identify the fuel line and relay location: [https://www.toyotanation.com/forum/1...iy-2002-2011-gen-5-5-5-gen-6-6-5-camry-injector-flush-using-oem-kit-w-pics.html](https://www.toyotanation.com/forum/1...iy-2002-2011-gen-5-5-5-gen-6-6-5-camry-injector-flush-using-oem-kit-w-pics.html).
Once you have located the fuel line and relay, you will need to open the quick disconnect. This will involve removing the relay and jumping the power wires to start pumping out the fuel. Be prepared with a suitable container to catch the drained fuel.
It is important to note that you will need to jump specific pins in the fuse box. The constant and output pins, which are pins 87 and 30, are the ones you will need to focus on.
Additionally, keep in mind that this process may not always yield immediate results, as indicated by a user who opened the quick disconnect but could not get fuel out even after opening the C/OPEN relay and shorting pin 87 and 30.
As always, exercise caution and refer to expert advice or a mechanic if you are unsure about any steps or procedures.
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Frequently asked questions
The simplest way to drain the fuel tank is to siphon the fuel out through the filler neck.
You will need a siphon and a suitable container to collect the fuel.
The fuel pump relay is located behind the passenger footwell trim or kick panel.
Remove the trim or kick panel, then disconnect the power side of the relay by unplugging the wiring harness.
Draining fuel can be dangerous. Ensure you are in a well-ventilated area and take appropriate fire safety precautions. Always dispose of the fuel responsibly.
