Do not start the engine until the system is fully bled doing so may cause damage to the power steering components.
Subaru forester power steering pump o ring.
This is a common problem after installing the new turbo inlet.
I installed the new o ring and swapped out the power steering fluid and this resolved the whirring sound problem.
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Installed a few days ago in 2016 wrx sti.
I replaced o ring of the power steering pump of my outback 2008 which was whining in cold weather.
In this video i attempted to fix my 2014 wrx sti by replacing the o ring in the power steering line that is known to go bad.
The o ring was too thin and power steering fluid was leaking from the join even before i started my engine.
I figured it was the o ring or the power steering pump.
High pitched whirring when turning the steering wheel was my issue.
O ring fit perfect.
Re seat the fitting and other bracket pieces to seal the reservoir.
Replace all hose clamps with new clamps 3.
The air being pulled into the pump will cause a lack of power steering and buzzing noise as the air disrupts the fluid.
Pump internals are metal to metal so any air in the system can cause metal to metal contact and resulting damage.
2004 2019 subaru impreza wrx sti power steering pump o ring seal 34439fg000 oem.
Oem subaru power steering pump connector o ring impreza sti legacy 34439ae021.
This o ring is most likely interchangable between many models but always check for a vehicle specific part.
I later ordered genuine part 34439fg000 from subaru dealer.
Slip the new o ring on the fitting.
No need for a new pump.
Subaru o ring 34439fg000 for 03 08 foresters.
Unfortunately this 4 fix didn.
Car is good to go.
After installing the turbo inlet on my wife s wagon the steering started whining groaning.
How to bleed subaru power steering systems.