Parts for your 2022 Subaru Impreza-Oil pump

2022 Subaru Impreza oil pump — what it does and how to look after it

Technical sources confirm the 2022 Subaru Impreza is fitted with a dedicated engine oil pump. The Subaru Service Manual (STIS) for the FB20 engine (MY2022) outlines a crankshaft-driven gerotor/trochoid oil pump integrated into the front timing chain cover under the “Lubrication” section. The Subaru Electronic Parts Catalogue (EPC) also lists an oil pump assembly for this model year, further confirming its use.

The oil pump’s job is to push a precise volume of oil under pressure through the engine. It feeds the crankshaft and connecting rod bearings, camshafts, AVCS (variable valve timing) actuators, timing chain tensioners, and other galleries so everything stays lubricated and cool. Without a healthy pump and clean oil, metal-to-metal contact can happen frighteningly fast — that’s when bearings score, chains rattle, and the engine’s life gets shortened.

There’s no scheduled “replace by” interval for the oil pump on a 2022 Impreza, it’s designed to last the life of the engine. The smartest maintenance is preventative: stick to the logbook service intervals, use the correct viscosity (typically 0W-20 meeting the latest ILSAC/SN Plus or SP/GF-6 spec as per the owner’s manual), and fit quality filters. Keeping oil clean and at the right level is what protects the pump and the rest of the engine.

• Common warning signs of low oil pressure or a struggling pump include: oil pressure lamp on the dash, a brief rattle on cold starts, persistent ticking from the top end, rising engine noise at idle, or metallic glitter in drained oil.

If any of those show up, it’s best to park it and have a technician confirm oil pressure with a mechanical gauge. Replacement is only advised if pressure is below spec, the relief valve is sticking, there’s internal pump wear, or the front cover needs major repair. On the FB20, the pump is part of the front case, replacement typically involves removing the crank pulley and front cover, renewing seals/O-rings, applying the correct FIPG sealant, and following the factory torque sequence (as documented in STIS). Expect several hours of labour and fresh oil/coolant — costs vary by workshop across Australia and New Zealand.

A couple of simple habits help: check the dipstick regularly, never drive with the oil light on, avoid overusing RTV during sump work (it can block the pickup), and let the engine settle for a few seconds after cold starts before giving it a bootful.

Does the 2022 Subaru Impreza actually have an oil pump?

Yes. Subaru’s factory Service Manual (STIS) lubrication section for the FB20 engine describes a crank-driven gerotor oil pump built into the front timing cover, and the Subaru EPC lists the oil pump assembly for MY2022 Impreza models.

How often should the oil pump be replaced on a 2022 Impreza?

It’s not a routine service item. Replace only if confirmed low oil pressure, internal wear, a sticking relief valve, or front cover damage is found. Regular oil changes with the correct 0W-20 spec and quality filters are what keep the pump happy.

What are typical symptoms of an oil pump issue?

Watch for the oil pressure warning lamp, start-up rattles, persistent top-end ticking, or shiny metallic flakes in used oil. If the lamp flickers or stays on, stop the car, check the level, and arrange a tow — running it can damage the engine in minutes.