Replacing Fuel Filter In Subaru Impreza: Step-By-Step Guide

If you're looking to replace the fuel filter in your Subaru Impreza, you should know that it's located inside the fuel tank, and can be accessed by removing the rear seat bottom. It's recommended that you replace the fuel filter every 72,000 miles, or 72 months, but some dealerships claim that it's a lifetime filter and doesn't need to be replaced. Replacing the fuel filter can be tricky, and there's a risk of damaging the fuel gauge, so it's important to be careful when removing it. Additionally, some Impreza owners choose to use fuel treatments and fuel system cleaners instead of replacing the filter.

Fuel filter location

The fuel filter location in a Subaru Impreza depends on the model year. For models manufactured before 2004, the fuel filter is located in the engine bay, on the front driver's side strut. However, for newer models, the fuel filter is located inside the fuel tank, which is accessible via the rear passenger compartment or by removing the rear seat bottom.

For a 2013 Subaru Impreza, the fuel filter is located inside the fuel tank, which can be accessed by removing the rear seat bottom. Similarly, for a 2017 Subaru Impreza, the fuel filter is also located in the fuel tank, and can be reached through the rear passenger compartment.

It is important to note that removing the fuel filter from the fuel tank can be a challenging task, and it may be necessary to remove the fuel tank itself for easier access. This process can be time-consuming and expensive, so it is often recommended to replace the fuel filter only when there are signs of clogging or issues with the fuel pump.

When to replace the fuel filter

There are differing opinions on when to replace the fuel filter on a Subaru Impreza. The manual for the 2017 model suggests replacing the fuel filter every 72,000 miles, but some Subaru dealerships claim that this is a "lifetime filter", and so the manual is inaccurate. Some owners have claimed that their dealerships have told them that the filter does not need to be replaced until there is an issue with the fuel pump. However, one owner was told by a Subaru mechanic that not replacing the filter could damage the injectors.

One source suggests that the only time a fuel filter needs to be replaced is if it gets clogged and can no longer maintain the needed flow with the amount of pressure the fuel pump can provide. Another owner suggests that the filter should be replaced at 60,000 miles, while another says they replaced theirs at 59,350 miles.

It is recommended that you do not add cleaning agents to the fuel tank, as this may cause damage to the fuel system.

Cost of replacement

The cost of replacing a fuel filter in a Subaru Impreza varies depending on the model year of the car, the location of the replacement service, and whether you opt for a dealership, mechanic, or mobile mechanic.

For a 2000 Subaru Impreza with a 2.5L engine, the estimated cost for a fuel filter replacement is between $185.80 and $209.96. The parts cost around $15, while labor costs are estimated to be around $140.

Some Subaru owners have reported being quoted prices of around $200 for the service at dealerships. However, others have mentioned that some dealerships have told them that the fuel filter is a "lifetime filter" and does not need to be replaced.

It is worth noting that some Impreza models have the fuel filter located inside the fuel tank, which can make replacement more complex and expensive. In these cases, it may be necessary to remove the fuel tank or access it through an "access panel" under the rear seat.

Online sources suggest that fuel filters for cars typically cost between $14 and $60, with labor costs pushing the total replacement cost to between $53 and $165 on average.

To save costs, some Impreza owners have opted to replace the fuel filter themselves, although caution is advised as it is a complex process and improper installation can lead to issues such as fuel leaks and inaccurate fuel level readings.

How to replace the fuel filter

Firstly, it is important to note that there is some discrepancy over whether the fuel filter on a Subaru Impreza needs to be replaced. Some sources suggest that the fuel filter is designed to last a lifetime and does not need to be replaced unless there is an issue with the fuel pump. Others suggest that the fuel filter should be replaced every 60,000-72,000 miles.

If you decide to replace the fuel filter, the first step is to locate it. On some models, the fuel filter is accessible via the rear passenger compartment. On other models, the fuel filter is located inside the fuel tank, which will need to be removed to access the filter.

Once you have located the fuel filter, the next step is to remove the old filter and install the new one. This process can be tricky, as it involves handling fuel and working in a confined space. It is important to be careful when removing the old filter, as the plastic float is part of the sending unit that reads the fuel level. Damage to this unit can cause inaccurate fuel level readings.

When installing the new fuel filter, it is important to ensure that it is securely connected to the fuel pump and sending unit. Once the new filter is in place, you can reassemble the fuel tank and passenger compartment.

Finally, it is important to test the new fuel filter to ensure that it is working correctly. This can be done by starting the car and checking for any leaks or issues with the fuel level readings. If there are no issues, your new fuel filter has been successfully installed!

Fuel filter alternatives

While there are no direct alternatives to a fuel filter, there are some workarounds and additional products that can help keep your fuel system clean.

Firstly, it is important to note that the fuel filter in your Subaru Impreza is located inside the fuel tank, which makes it less accessible and more challenging to service than external fuel filters. Some Impreza owners have reported that their local Subaru dealerships have informed them that the fuel filter is a "lifetime filter", and therefore does not need to be replaced unless there is an issue. However, others have been told by dealerships and mechanics that the fuel filter should be replaced around every 72,000 miles, as recommended in the Impreza owner's manual.

If you choose to replace the fuel filter, it is important to exercise caution as the plastic float that reads the fuel level is integrated into the fuel pump, and it can be damaged during the process. Additionally, some Impreza owners have reported that adding fuel treatments and fuel system cleaners on a regular basis can help maintain a clean fuel system and potentially extend the life of the fuel filter. However, it is important to note that the Impreza owner's manual advises against adding any cleaning agents to the fuel tank, as it may cause damage to the fuel system.

One alternative to consider is using top-tier rated fuel, which has additional filtering at the gas station and can help reduce the amount of impurities that reach your fuel tank. Another option is to periodically add a can of Sea Foam Motor Treatment to your fuel tank, which can help clean and lubricate the fuel system.

Furthermore, there are special tools required to access the fuel pump and filter on some models of the Impreza, which can be expensive. Universal fuel pump removal wrenches are available at a lower cost, but it is important to verify that they will fit your specific model to avoid damage.

In conclusion, while there are no direct alternatives to a fuel filter, maintaining a clean fuel system through the use of high-quality fuel and fuel additives, as well as periodically checking and servicing the fuel filter, can help extend its lifespan and maintain the performance of your Subaru Impreza.

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