Parts for your 2013 Subaru Forester-Power steering pump

2013 Subaru Forester Power Steering Pump

Technical references confirm the 2013 Subaru Forester (SH series) uses a hydraulic power steering system with a belt-driven power steering pump. The 2013 Forester Owner’s Manual specifies “power steering fluid (ATF)” and outlines level checks, which only apply to hydraulic systems with a pump. The Subaru Factory Service Manual (Steering System – Hydraulic Power Steering, MY2013 Forester) details the pump, hoses, and rack, while Subaru genuine parts catalogues list a complete power steering pump assembly for this model. Notably, the next-generation 2014 Forester (SJ) moved to electric power steering, which deletes the pump.

On the 2013 Forester, the power steering pump’s job is to supply hydraulic pressure to the steering rack so the wheel turns smoothly with minimal effort, especially at parking speeds. Driven off the accessory belt, the pump draws ATF from the reservoir, pressurises it, and feeds the rack, a built-in relief valve keeps pressure in check as revs and steering load change. When it’s healthy, steering feel is consistent, quiet, and predictable.

As part of routine servicing, this pump deserves a quick once-over. Check fluid level and colour in the reservoir, fluid should be clean and a consistent red tone. Dark, burnt-smelling or foamy fluid points to aeration or contamination. Many Foresters develop a light pump “whine” from a tired inlet O‑ring on the suction side, replacing that O‑ring and re-clamping the hose often restores silence. Keep an eye out for seepage at the pump body, hose crimps, and rack boots.

The accessory belt that drives the pump should be inspected for cracks, glazing, and proper tension. A slipping belt can mimic pump failure with heavy or noisy steering at low speed. When replacing fluid, use the ATF type specified on the cap/owner’s manual (commonly Dexron III–spec or Subaru ATF). A periodic drain-and-fill or a gentle exchange helps the pump and rack live longer, particularly in Aussie and Kiwi heat.

If the pump does need replacement, it’s typically a straightforward job for a workshop: swap the unit, renew the inlet O‑ring, torque the fittings, refill, and bleed. Bleeding is simple—wheels off the ground, engine off at first, turn lock-to-lock slowly to purge air, top up, then repeat with the engine running. Avoid holding the wheel on the stops. After a short drive, re-check level and for leaks. Genuine or quality reman pumps, matched with fresh ATF and a sound belt, will keep the SH Forester steering sweet for many more kilometres.

• Signs of trouble: whining or groaning, heavy steering at idle, foamy fluid, metallic glitter in fluid, fresh leaks.
• Good practice: replace the suction O‑ring, refresh ATF on condition, and verify belt condition/tension during every service.

Popular questions

What fluid does a 2013 Subaru Forester power steering system use?
The 2013 Forester’s hydraulic system uses automatic transmission fluid (ATF), not a generic “power steering fluid.” The owner’s manual and reservoir cap specify the correct grade (commonly Dexron III–type or Subaru ATF). Sticking to the right fluid prevents noise, seal wear, and rack issues. If the history’s unknown, a careful fluid refresh is a smart preventative step.

How can an owner tell if the power steering pump is failing?
Typical clues include a rising whine or groan that changes with engine speed, heavier steering at parking speeds, foamy or dark fluid in the reservoir, and wetness around the pump or hoses. Aeration from a hard inlet O‑ring can sound like pump failure—fixing that seal often cures the noise. If symptoms persist after correct fluid and bleeding, the pump may be worn.

Is it safe to drive with a noisy or weak power steering pump?
While the car can often still be driven, it’s not ideal. Loss of assist makes low-speed manoeuvres harder and can increase stopping distances in emergency swerves. Continued use with aerated or contaminated fluid can damage the rack. It’s best to diagnose promptly, many issues are inexpensive—like an O‑ring and fluid—if caught early.