Loud power steering pump. - Subaru Outback - Subaru Outback Forums

SubaruOutback.org is the premier Subaru Outback Forum on the internet. Registered Users do not see the above ads.
Reply
 
LinkBack Thread Tools Rate Thread
Old 03-31-2013, 09:54 PM   #1 (permalink)
Dre
Registered User
 
Dre's Avatar
 
Join Date: Jul 2007
Location: Chicago
Car: 00 Outback Limited
Posts: 58
Feedback Score: 0 reviews
Default Loud power steering pump.

2000 OBW - power steering pump is kind of loud - not normal anyway. Fluid is at level... should I first try and replace the filter or just go for the pump right away?

Any past issues?

thanks,
__________________
02 OBK (former)
00 OBK Limited
Dre is offline   Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Old 03-31-2013, 10:58 PM   #2 (permalink)
Registered User
 
1 Lucky Texan's Avatar
 
Join Date: Jan 2004
Location: behind the Krell Metal door
Car: 03 H6 OBW & 06 WRX Sportwagon
Posts: 7,178
Feedback Score: 0 reviews
Default

read here first, How does air get into the Power Steering system?

this can happen to H6 or H4. I think the H4 has 2 o-rings.


The point is, IF you see bubbles in the reservoir while idling, the suction side of the system has a leak and air is being pulled in.

If you have no bubbles, the problem certainly could be the pump.
__________________
Time Flies Like an Arrow,
Fruit Flies Like a Banana!
1 Lucky Texan is offline   Reply With Quote Quick reply to this message
Old 04-01-2013, 12:49 AM   #3 (permalink)
Registered User
 
DavidPeab's Avatar
 
Join Date: Apr 2012
Location: Pasadena, MD
Car: Little Red, 2000 Outback H4 "Limited"
Posts: 2,100
Feedback Score: 3 reviews
Default

What kind of loud? A whirring noise that increases with the throttle could be due to air in the system as noted by 1 Lucky Texan above.

A squeaking noise could be a bad or maladjusted belt.

A grinding noise could be spent pulley bearings.

How does the steering feel? Is it tough to turn the wheel at certain speeds, times (cold car vs. warmed up)? Does the wheel jerk? Does it make more noise in reverse or forward? More noise when turned farther one way than the other? Is it an H6 (6 cyl.) or H4 (2.5 L, 4 cyl.)? How many miles on it?

These cars have pretty reliable steering pumps and replacement is usually the last course of action. If you decide to replace it, DO NOT use an auto parts store "OEM equivalent" or "OEM compatible" pump. Pay a dealership or on-line Subaru parts supplier for the real deal, or get a used one from a junk yard or eBay.
DavidPeab is offline   Reply With Quote Quick reply to this message
Old 04-01-2013, 09:18 AM   #4 (permalink)
Dre
Registered User
 
Dre's Avatar
 
Join Date: Jul 2007
Location: Chicago
Car: 00 Outback Limited
Posts: 58
Feedback Score: 0 reviews
Default

It's the whirring noise increasing with the throttle... and I was going to mention "fuming" fluid in the res tank... but just kept my mouth shot. I'll look into this today or tomorrow before I commit to a new pump.

thanks!
__________________
02 OBK (former)
00 OBK Limited
Dre is offline   Reply With Quote Quick reply to this message
Old 04-01-2013, 09:48 AM   #5 (permalink)
Registered User
 
DavidPeab's Avatar
 
Join Date: Apr 2012
Location: Pasadena, MD
Car: Little Red, 2000 Outback H4 "Limited"
Posts: 2,100
Feedback Score: 3 reviews
Default

Don't buy the pump. There is a simple and inexpensive fix found in 1 Lucky Texan's link above or by searching this forum that involves replacing an O-ring in your existing pump that will eliminate the whirring noise and more than likely make your pump as good as new. If you decide to do the O-ring fix, be sure to order the ring(s) from a dealership or OEM parts supplier.

Although the fluid's behavior in the reservoir points to the O-ring fix for air getting into the PS system, be sure the noise is not coming from your alternator. It makes a similar whirring noise when it is failing. Do you have any strange electrical symptoms or dashboard warning lights? You can isolate the noise using a mechanic's stethoscope or a large screwdriver carefully placed against each component (PS pump, alternator, etc.) while holding the handle up to your ear.
DavidPeab is offline   Reply With Quote Quick reply to this message
Old 04-01-2013, 10:06 AM   #6 (permalink)
Dre
Registered User
 
Dre's Avatar
 
Join Date: Jul 2007
Location: Chicago
Car: 00 Outback Limited
Posts: 58
Feedback Score: 0 reviews
Default

Quote:
Originally Posted by DavidPeab View Post
Don't buy the pump. There is a simple and inexpensive fix found in 1 Lucky Texan's link above or by searching this forum that involves replacing an O-ring in your existing pump that will eliminate the whirring noise and more than likely make your pump as good as new.
I know, thanks... I should of thought about it before - I did take everything apart when I was replacing HG's and even though the noise is not new, was there before I never thought about looking into the problem until now.

O-ring should be no brainer - funny things is I did replace well used o-rings on the engine coolant by-pass pipe - o-rings that looked and felt more like plastic washers... and valve cover seals that felt more like plastic. The car is 13 years old and after 270,000 miles it might need a new gasket or an o-ring here and there.

thanks again,
__________________
02 OBK (former)
00 OBK Limited
Dre is offline   Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Reply


Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Subaru Outback - Subaru Outback Forums forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
If you do not want to register, fill this field only and the name will be used as user name for your post.
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools
Rate This Thread
Rate This Thread:

Posting Rules
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On



All times are GMT -4. The time now is 05:13 PM.



Powered by vBulletin®
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Search Engine Friendly URLs by vBSEO 3.3.2
Copyright 2009-2010 SubaruOutback.org. All Rights Reserved.