Replacing The Fuel Filter In Your Fj Cruiser: Step-By-Step Guide

how to change fuel filter fj cruiser

The fuel filter on an FJ Cruiser is located inside the fuel tank, at the bottom of the fuel intake line. It is a sock-like object, approximately three inches long and one inch wide. While some sources suggest that it does not need to be changed unless you get really nasty gas, others suggest that it can be changed by dropping the tank. This can be done by working on an empty tank and disconnecting everything from the top of the tank before dropping it.

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The fuel filter is inside the fuel tank

The fuel filter on a Toyota FJ Cruiser is located inside the fuel tank. It is described as a sock-like attachment at the bottom of the fuel intake line, measuring about three inches long and one inch wide. This type of fuel filter is designed to be more long-lasting than the traditional inline fuel filters, as it does not require regular replacement unless the vehicle is consistently filled with low-quality gasoline.

If you decide to change the fuel filter, it is important to note that you will need to drop the fuel tank to access it. Start by ensuring the tank is empty, and then disconnect all the components attached to the top of the tank. Removing the back seat and plastic floor liner will provide better access to the fuel line. Having an extra set of hands and a jack can be helpful during this process. Additionally, consider using an oil filter wrench or a specialized tool to remove the white lid on the tank.

It is worth noting that some FJ Cruiser owners have expressed confusion about the location of the fuel filter. While it is primarily located inside the fuel tank, there have been discussions about a possible additional fuel filter in the engine bay on the driver's side. However, this may be a misunderstanding, as some sources refer to the fuel pump in the tank as a "fuel pump/filter assembly."

If you are unsure about the specific maintenance requirements of your FJ Cruiser's fuel system, it is always best to consult a trusted mechanic or refer to the vehicle's official service manual for detailed instructions.

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It's a sock at the bottom of the fuel intake line

To change the fuel filter on an FJ Cruiser, you'll first need to locate it. The fuel filter on this vehicle is located inside the fuel tank, accessible from the top of the tank. It's what's known as a "sock filter", which is a cylindrical filter that fits over the end of the fuel intake line.

The sock filter is about three inches long and one inch wide. It is designed to catch impurities and debris before they reach the fuel pump, fuel rails, and fuel injectors. This is important maintenance, as a clogged fuel injector can cause fuel starvation and lean running conditions that may damage your fuel pump or burn up your engine.

To access the sock filter, you will need to drop the fuel tank and disconnect everything from the top of the tank. This includes removing the back seat and plastic floor liner to access the fuel line. It is recommended to have an extra set of hands and a jack ready to assist you. Additionally, you may need a special tool to remove the white lid; an oil filter wrench will work for this purpose. Ensure that you perform this task on an empty tank for safety.

Once you have accessed the fuel tank, you will be able to locate the sock filter at the bottom of the fuel intake line. Replace the old sock filter with a new one, ensuring it is securely attached. Reassemble the fuel tank and the surrounding components in the reverse order of disassembly.

By following these steps and referring to manufacturer guidelines, you can safely and effectively change the sock filter on your FJ Cruiser, maintaining optimal fuel system performance.

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You can access it without dropping the tank

To change the fuel filter on an FJ Cruiser, you will need to access the fuel pump, which is located inside the fuel tank. While some people claim that it is necessary to drop the tank to reach the fuel pump, others suggest that it may be possible to access it through an interior access door located in the rear seat area. However, even if you can access the fuel pump through this door, it is unclear whether the fuel filter can be replaced through the same opening.

To access the interior access door, you will need to remove the rear seat bottom and the threshold trim. There may also be some insulation or other covering over the door that will need to be removed. Once you have located the door, you will need to disconnect the electrical connector to the fuel pump before attempting to remove the fuel tank. It is important to note that the fuel lines cannot be disconnected through this access door; they must be disconnected from underneath the vehicle.

If you decide to drop the fuel tank to access the fuel pump and filter, it is recommended that you do so on an empty tank. You will need to remove the rear seat and plastic floor liner to access the fuel lines. It is also suggested that you have an extra set of hands and a jack to assist you in this process. Additionally, you may need a special tool to remove the white lid on the fuel pump, although an oil filter wrench can also be used.

Whether you access the fuel pump through the interior access door or by dropping the fuel tank, changing the fuel filter on an FJ Cruiser can be a challenging task. It may be beneficial to have some mechanical knowledge or experience before attempting this repair.

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You can change the fuel pump assembly

To change the fuel pump assembly, you will need to:

  • Ensure you have an empty tank.
  • Disconnect everything from the top of the tank.
  • Remove the back seat and plastic floor liner to access the fuel line.
  • Have an extra set of hands and a jack ready.
  • Use a special tool or an oil filter wrench to remove the white lid.

You can also buy an URD 2010-2014 Toyota FJ Cruiser Fuel Pump/Filter Upgrade Kit, which includes detailed installation instructions, an external high-capacity fuel filter, and a special in-tank, high-pressure fuel submersible hose.

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Or buy a URD Fuel Pump/Filter Upgrade Kit

If you're looking to upgrade your FJ Cruiser's fuel pump and filter, the URD Fuel Pump/Filter Upgrade Kit is a great option. This kit is designed to address the common issue of insufficient fuel flow and pressure in the Toyota 4.0L 1GR-FE engine, which can lead to a lean fuel mixture and decreased performance.

The URD kit replaces the stock in-tank fuel pump with a high-flow fuel pump and also converts the small in-tank fuel filter to a large-capacity external filter that is easily replaced. This is a significant improvement, as accessing the stock fuel filter typically requires dropping the fuel tank, which is a cumbersome task. With the URD kit, you can simply replace the external filter in minutes without having to go back into the fuel tank.

The URD Fuel Pump/Filter Upgrade Kit is available for both US and non-US market FJ Cruisers from 2007 to 2009. It includes detailed installation instructions, a high-flow fuel pump (with the option to choose your preferred pump), an external high-capacity fuel filter, and all the necessary fuel lines and accessories.

Several customers have left positive reviews for the URD kit, noting improved throttle response, power, and overall performance. The ability to easily replace the external fuel filter is also highlighted as a significant advantage over the stock fuel filter setup.

Frequently asked questions

The fuel filter is located inside the fuel tank. It is accessible from the top of the tank and is a sock at the bottom of the fuel intake line.

The fuel filter does not need to be changed regularly like old inline fuel filters unless you get really nasty gas.

You can change the fuel filter by changing the fuel pump assembly. Alternatively, you can purchase the URD Fuel Pump/Filter Upgrade Kit for the 2010-2014 Toyota FJ Cruiser, which includes an external high-capacity fuel filter.

There is some debate about this. Some sources mention an additional fuel filter in the engine bay on the driver's side, while others claim that there is only the fuel filter inside the fuel tank.

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