Parts for your 2017 Subaru Impreza-Fuel pump

2017 Subaru Impreza fuel pump — what it does and how to look after it

Yes, a fuel pump is absolutely used on the 2017 Subaru Impreza. Technical documentation from Subaru’s 2017MY Impreza Service Manual (Subaru Technical Information System, Fuel Injection/Direct Injection sections) describes two pumps: an in-tank electric low-pressure pump and a camshaft-driven high-pressure fuel pump on the engine. Subaru’s genuine parts catalogue for this model also lists both the “Fuel Pump Assembly” (in-tank module) and the “High-Pressure Fuel Pump,” confirming fitment.

On the road, the in-tank pump lifts petrol from the tank and feeds it forward, while the high-pressure pump ramps that pressure up for the direct-injection system. Together they keep the FB20D engine happy, ensuring clean starts, smooth idle and solid power when merging or overtaking.

There’s no scheduled replacement interval for the fuel pump on this model, it’s serviced on condition. Good fuel quality and sensible habits go a long way to pump longevity. If the car starts taking longer to crank, stumbles under load, or throws a fuel-pressure code, it’s time to test pressure and volume rather than guess.

• Common clues of pump trouble: hard starting, loss of power on hills, surging, a whining noise from the tank area, or engine light with fuel-pressure faults (e.g., P0087/P0088).
• Helpful habits: avoid running the tank near empty, stick with reputable 91 RON or higher, and keep up with regular servicing so issues are caught early.

Replacing the in-tank pump module is a straightforward but fuel-sensitive job. The access panel sits under the rear seat base. A pro will disconnect the battery, safely relieve system pressure, lift the seat, remove the service cover, then extract the locking ring and module. A new sealing O-ring is a must, the locking ring is torqued correctly, and the system is primed and checked for leaks before the seat goes back in.

The high-pressure pump on the engine is mechanical and runs at far higher pressures, so extra care is needed. Replacement involves new gaskets/seals, correct torque, and strict no-spark, no-flame safety. If there’s any sign of fuel seepage, don’t drive—get it inspected straight away.

With proper fuel and sensible habits, most owners will clock plenty of kilometres before a pump even crosses their mind. If it does, testing first and replacing with quality parts keeps the Impreza running sweet.

Popular questions about 2017 Subaru Impreza fuel pumps

Does the 2017 Impreza really have two fuel pumps?
Yes. It uses an electric in-tank pump to supply fuel forward and a cam-driven high-pressure pump on the engine for the direct-injection system. This setup is detailed in Subaru’s 2017MY service information and reflected in the official parts listings.

What are signs the fuel pump is failing?
Think longer cranking, hesitation under acceleration, reduced power at motorway speeds, a faint whining from the tank, or a check engine light with fuel-pressure codes. A proper fuel-pressure and volume test will confirm it.

Is the fuel filter separate on this model?
No. The primary filter is integrated into the in-tank pump module, so if the filter is blocked, the usual fix is replacing the module. There isn’t a routine filter change interval listed for this generation.