Power Steering Pump Relief Valve – 2001-2011 Subaru

NHTSA ID Number: 10091965

Manufacturer Communication Number: 04-13-09R

Summary

IF YOU ENCOUNTER A VEHICLE THAT HAS A GROANING TYPE NOISE COMING FROM THE POWER STEERING PUMP WHEN THE WHEEL IS TURNED TO THE FULL RIGHT OR LEFT POSITION WHEN THE VEHICLE IS PARKED, IT MAY BE CAUSED BY THE RELIEF VALVE VIBRATING WITHIN THE PUMP. IN LIEU OF REPLACING THE POWER STEERING PUMP, THE RELIEF VALVE IS NOW AVAILABLE AS A REPLACEMENT PART.

 


NUMBER: 04-13-09R
DATE: 12/14/09
REVISED: 09/18/15

APPLICABILITY:2001~07MY Legacy/Outback H-6
2003~08MY Forester 2.5L N/A and Turbo
2004~11MY Impreza 2.5L N/A
SUBJECT:Power Steering Pump Relief Valve

 

INTRODUCTION

If you encounter a vehicle that has a groaning type noise coming from the power steering pump when the wheel is turned to the full right or left position when the vehicle is parked, it may be caused by the relief valve vibrating within the pump.  In lieu of replacing the power steering pump, the relief valve is now available as a replacement part.

 

PART INFORMATION

Note: The power steering pump part numbers are listed for reference only.

APPLICABILITYPART NUMBER (RELIEF VALVE)PART NUMBER (P/S PUMP)PARTS BULLETIN INFO
2001~03MY LEGACY/OUTBACK H634441AG03034430AE0839L
Steering System Hydraulic Pump for Subaru for Outback 3.0L H6 2001-2004 34430-AE083 34430AE083 34430AE0839L 34430AE082 34430-AE082 Power Steering Pump
  • Materials: The power steering pump is made of high-quality aluminum and iron components. Corrosion- and heat-resistant aluminum ensures long-lasting reliability.
  • Function: Our power steering pump makes steering easier, enhances vehicle steering control, and improves stability and maneuverability. This helps reduce fatigue on long drives, giving you a smoother, more comfortable ride.
  • Features: The power steering pump ensures smooth operation and eliminates squealing noises. If you experience rough wheel rotation, slow steering response, stiffness, or unusual noises, inspect the power steering pump and replace it if defective.
  • Friendly Tip: Please confirm your vehicle model and part number before placing an order. Calculate your model year and model and check the compatibility label, or send us a message to ensure an exact match. Once confirmed, place your order with confidence.
  • Perfect Service: If you have any questions, we are happy to answer all your questions about our products and provide you with the best solution via email within 24 hours.

Last update on 2026-06-17 / Affiliate links / Images from Amazon Product Advertising API


 

2004MY LEGACY/OUTBACK H634441AG030
2005~07MY LEGACY/OUTBACK H634441AG04034430AG0119L
2003~05MY FORESTER 2.5L N/A34441AG03034430SA010See P.B. 000893
2003~08MY FORESTER Turbo34441AG03034430SA000See P.B. 000900
2006~08MY FORESTER 2.5L N/A34441AG02034430SA0219L
Subaru 34430SA0219L Power Steering Pump
  • This product parts meet tested safety requirements and match SubarueBay logo proven performance standards
  • This product helps provide a trusted installation and lasting life
  • This product is manufactured in United States

Last update on 2026-06-17 / Affiliate links / Images from Amazon Product Advertising API


 

2004MY IMPREZA 2.5L N/A34441AG01034430FE050See P.B. 000871
2005MY IMPREZA 2.5L N/A34441AG01034430FE081
2006~07MY IMPREZA 2.5L N/A34441AG02034430SA020See P.B. 000870
2009~10MY FORESTER 2.5L N/A34441FG00034430FG011
2011~13MY FORESTER 2.5L N/A34441FG00034430SC011

 

Note: Always confirm the correct part number with your parts department before ordering.

 

REPAIR/SERVICE INFORMATION

Before performing the repair, check the following items first: 

  • Check to make sure the tires are properly inflated.
  • Check to make sure the power steering fluid is at the proper level.
  • Check to make sure the belt is properly adjusted.
  • Check to make sure the hoses are properly aligned and not rubbing anything.
  • Check to make sure there is no air in the system.

After making any necessary adjustments if the noise is still present, perform the following:

  • Park the vehicle on a dry solid surface (concrete preferred). With the engine idling,   transmission in park or neutral with the parking brake applied, turn the steering wheel to the full right or left position.  If the noise is heard, replace the relief valve.
This plug will be removed to replace the relief valve.

 

  • Remove the power steering pump; refer to the applicable service manual.
power steering pump

  • Place the power steering pump in a vise.

 

Place the power steering pump in a vise

  • Remove the plug using a 22mm box wrench.

 

Relief Valve

Relief Valve

  • Using a pair of tweezers, remove the relief valve. Note: Be careful not to scratch the inside of the pump housing.
Relief Valve

  • Install a new relief valve.

 

Relief Valve

  • Confirm that the relief valve moves smoothly by pushing it in and out several times.

 

Install plug

  • Install plug and torque to proper specification 30~40 N-m (3.0~4.0 Kgf-m, 22.1~29.5 ft-lb)
  • Reinstall power steering pump; refer to the applicable service manual.

 


NHTSA ID Number: 10153183

Manufacturer Communication Number: 04-13-09R

Summary

This post was revised in error. It has been corrected back and removed from the posting list. The message was corrected on 04-13-14R posting dated 11/14/2018.

 

1 Associated Document

Manufacturer Communications

NUMBER: 04-13-09R
DATE: 12/14/09
REVISED: 11/13/18

https://www.nhtsa.gov/recalls?nhtsaId=10153183

MC-10153183-9999.pdf 224.543KB

 


NHTSA ID Number: 10093117

Manufacturer Communication Number: 04-13-09R

Summary

IF YOU ENCOUNTER A VEHICLE THAT HAS A GROANING TYPE NOISE COMING FROM THE POWER STEERING PUMP WHEN THE WHEEL IS TURNED TO THE FULL RIGHT OR LEFT POSITION WHEN THE VEHICLE IS PARKED, IT MAY BE CAUSED BY THE RELIEF VALVE VIBRATING WITHIN THE PUMP. IN LIEU OF REPLACING THE POWER STEERING PUMP, THE RELIEF VALVE IS NOW AVAILABLE AS A REPLACEMENT PART.

 


1 Associated Document

Service Bulletin Document

NUMBER: 04-13-09R
DATE: 12/14/09
REVISED: 07/06/15

https://www.nhtsa.gov/recalls?nhtsaId=10091965

SB-10091965-2280.pdf 331.436KB

 


NHTSA ID Number: 10140549

Manufacturer Communication Number: 04-13-09R

Summary

If you encounter a vehicle that has a groaning type noise coming from the power steering pump when the wheel is turned to the full right or left position when the vehicle is parked, it may be caused by the relief valve vibrating within the pump. In lieu of replacing the power steering pump, the relief valve is now available as a replacement part.

 

1 Associated Document

Manufacturer Communications

NUMBER: 04-13-09R
DATE: 12/14/09
REVISED: 06/17/15

https://www.nhtsa.gov/recalls?nhtsaId=10140549

MC-10140549-9999.pdf 331.82KB

 


 

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Last update on 2026-06-17 / Affiliate links / Images from Amazon Product Advertising API


 

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