Parts for your 2013 Subaru Impreza-Fuel pump

2013 Subaru Impreza fuel pump — purpose, servicing and replacement

Technical sources confirm a fuel pump is fitted and relevant on the 2013 Subaru Impreza. Subaru’s Service Manual (via the Subaru Technical Information System, STIS) for the 2012–2016 Impreza details the in‑tank electric fuel pump module within the Fuel Injection and Fuel Tank/EVAP sections, including pump control by the ECM and fuel pump relay/control module. Subaru’s Electronic Parts Catalogue for this model also lists a complete in‑tank fuel pump assembly. So yes — the 2013 Impreza runs an in‑tank electric fuel pump.

On the 2.0‑litre FB20 petrol engine, the fuel pump sits inside the tank and pushes fuel forward at the correct pressure so the injectors can do their thing. It’s a returnless setup, managed by the engine computer for quiet, efficient running. The pump module houses the electric pump, internal filter and strainer, and a new sealing ring is normally fitted when the unit’s replaced.

There’s no scheduled replacement interval for the pump on these Subarus. Instead, look after it with good fuel and simple habits: keep at least a quarter tank to help cool the pump, avoid contaminated petrol, and don’t ignore a whining noise from the tank area. Typical warning signs include hard starting, hesitation on hills, loss of power at motorway speeds, misfires, stalling when hot, or a check‑engine light with lean or low‑pressure codes. A proper fuel‑pressure test and scan tool check will confirm the diagnosis.

Replacement is very doable but needs care. The access cover is under the rear seat base. A safe job involves:

• Depressurising the system and disconnecting the battery
• Lifting the service cover, unclipping fuel lines/connectors, and removing the lock ring with the correct tool
• Swapping the module, fitting a new tank seal, and ensuring lines click home properly
• Priming the system by cycling the key before starting, then checking for leaks

Given petrol vapours and the risk of damaging the tank ring, many owners leave it to a licensed technician. When replacing, go for quality parts (genuine or reputable aftermarket) and always use a new sealing gasket. A quick post‑fit road test and scan check will confirm the pump’s happy and the Impreza’s back to smooth, reliable running.

FAQs

Does the 2013 Impreza have a serviceable fuel filter?
For this model, the main filter is integrated into the in‑tank fuel pump module. There isn’t a routine external filter to replace. If fuel contamination or pressure issues are found, the usual fix is to replace the complete pump module (which includes the internal filter and strainer).

How long does a fuel pump last, and what are the warning signs?
Many last well over 150,000 km when fed clean fuel. Early clues are a high‑pitched whine from the tank, hard starts, poor acceleration, surging, or stalling when hot. A check‑engine light with lean or low‑pressure fault codes is common. Proper testing will confirm before parts are ordered.

Can a DIYer replace the pump at home?
It’s possible for a capable DIYer with the right safety gear and tools, but there are hazards: fuel vapours, brittle connectors, and a stubborn lock ring. If unsure, get a workshop to handle it — they’ll pressure‑test, clear codes and warranty the work.