Parts for your 2013 Subaru Legacy-Fuel pump

Everything You Need to Know About the Fuel Pump on a 2013 Subaru Legacy

The 2013 Subaru Legacy, like most modern vehicles, is fitted with a fuel pump as a critical component of its fuel delivery system. The fuel pump plays a key role in ensuring the engine receives a steady and consistent flow of fuel to operate efficiently and reliably. For those owning or considering servicing a Subaru Legacy from 2013, understanding the purpose of the fuel pump and how to maintain or replace it can be very helpful.

So what exactly does the fuel pump do? Put simply, its job is to move fuel from the car's fuel tank to the engine. Without a working fuel pump, the fuel just sits in the tank and never reaches the engine's combustion chambers, meaning the car simply won't run. On the 2013 Subaru Legacy, the fuel pump is an electric unit located inside the fuel tank. This in-tank location is pretty standard on most modern vehicles, because it helps keep the pump cool and reduces the risk of vapour lock, which can cause issues on older or carbureted engines.

When you turn the ignition key or push the start button in your Legacy, the fuel pump kicks into gear and starts pushing fuel through the fuel lines to the fuel injectors. The injectors then spray the right amount of fuel into the engine's cylinders, where it's mixed with air and ignited to keep the car running smoothly. The electric fuel pump ensures there is enough pressure to maintain efficient fuel atomisation and combustion. This pressure is critical, if it's too low, the engine may misfire, lack power or stall. If it's too high, it can cause damage to the fuel system or poor engine performance.

Maintenance wise, the fuel pump generally doesn't require regular servicing in the way oil changes or brake checks do. However, it benefits from some ongoing care to keep it performing well. One of the most important things to remember is to avoid running your 2013 Subaru Legacy consistently on a near-empty tank. Why? Because the electric fuel pump relies on the surrounding fuel in the tank to stay cool and lubricated. Running low on fuel can cause the pump to overheat and wear out prematurely.

Another maintenance point is the fuel filter. On the 2013 Subaru Legacy, the fuel pump assembly often includes a built-in strainer or filter to prevent large debris from entering the pump and fuel system. Over time, these filters can get clogged by dirt, rust, or other contaminants that accumulate in the fuel tank. While the filter is not always a separate service item, ensuring clean fuel by using quality petrol and keeping the tank clean can help prolong the life of the fuel pump.

Now, how do you know if your fuel pump is starting to fail? Some common symptoms include:

• Difficulty starting the car or the engine takes longer to turn over
• Engine sputters or stalls while driving, particularly under load or at higher speeds
• Loss of power during acceleration
• Unusual whining or buzzing noises coming from the fuel tank area
• Sudden engine hesitation

If a Subaru Legacy owner experiences these issues, it's worth having the fuel pump checked as a priority, as a failing pump can leave you stranded. Professional mechanics can test fuel pressure and inspect the pump's electrical connections to diagnose the problem.

When replacement is necessary, the process involves removing the rear seat or accessing the fuel tank under the vehicle, disconnecting the fuel lines and electrical connections, and then swapping out the old pump for a new one. Since the pump is submerged in fuel, it's also important to handle the job safely to avoid any risk of fire or explosion - best left to experienced technicians.

It's also a good idea to use genuine or high-quality aftermarket parts when replacing the fuel pump. This ensures compatibility with the Subaru Legacy's fuel system and maintains the correct pressure and flow rates. A reliable pump will improve fuel efficiency, engine performance and driveability.

For those servicing their 2013 Subaru Legacy, while fuel pump replacement is not a routine maintenance task like changing spark plugs or oil, inspecting the fuel system periodically and addressing any fuel delivery signs early can save hassles down the track. Regular use of fuel system cleaners and keeping the fuel tank clean contribute to a longer-lasting fuel pump and a smoother running vehicle overall.

In short, the fuel pump is a small but mighty part that plays a vital role in the everyday operation of the 2013 Subaru Legacy. Paying attention to fuel quality, tank level and being alert to symptoms of pump wear helps keep your Legacy running strong and ready for the road.