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Old 06-07-2012, 02:35 AM   #1 (permalink)
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Default power steering leak?

While changing the engine oil in my outback (AU MY05 H6) on the weekend, noticed that the power steering fluid was quite low.

Now in trying to track down where the leak might be, I have found what appears some sort of leak, more or less black oil with a green tinge leaking from just above the the Left axle/CV joint (passenger side on a RH drive car).

Coolant level seem fine so can rule that out.

Could this be related to the power steering? Where is the power steering pump in these cars? Steering does seem to have been a little heavier the past couple months (but that could just be my imagination!)
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Old 06-07-2012, 03:20 AM   #2 (permalink)
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Greenish black oil may be CV grease, check the boots for leaks. I suppose regular oil could look greenish but not usually.

Power steering fluid is Transfluid so it's red or reddish.

You don't say when the last time you checked it was so, hard to say how long it's been low, if there is a large leak or just a small one that has leaked for years.

PS pump on a 4 is on the top pass side. It's either the thing the reservoir is sitting on or the thing at the other end of the hose from the res [it will have a pulley on it].

The pump has lines that go down to the hydraulic rack down at the bottom of the engine compartment, another place to look for leaks.
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Old 06-07-2012, 03:33 AM   #3 (permalink)
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I havent checked it before. had the car for 2 years, but up until now just had services done at the garage.

I will have to have a better look when its daylight again, but did appear to be leaking from just above the axel, near engine mount...
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Old 06-07-2012, 06:38 PM   #4 (permalink)
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The inner boot on the CV joint is split Whats the best thing to do with this? replace with a reman unit?

I can't find any obvious power steering leaks though, guess I will just top that up and keep an eye on it.
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Old 06-07-2012, 07:05 PM   #5 (permalink)
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best is to replace it with a subaru axle, but no body pays for that, $$$.

next best is to re-boot the one you have. it is messy and will cost close to what the cheapest re-man out there costs, BUT BUT BUT subaru axles are far superior to what is usually sold at the parts stores. and if you re-boot before it starts to make noise, it will probably serve better and last longer than the other re-mans available.

next best is to get a re-man from MWE. you can find a link to them on the ccrinc web site, colorado component rebuilders i think, google them.

if none of these suit you just buy a replacement from NAPA and swap it out.
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Old 06-08-2012, 12:47 AM   #6 (permalink)
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thanks for the tips, think I will go the re-boot option
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Old 06-08-2012, 09:41 AM   #7 (permalink)
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Quote:
thanks for the tips, think I will go the re-boot option
subaru axles have the inner cup painted green. most of the remans i have seen are painted black. so i'm not sure i would spend the time rebooting on a non-subaru axle. it would be a toss up. but if the axle you have is working well and you have been driving on it a long time i might reboot it even if it is an aftermarket axle. another after market replacement may not be as good.
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Old 06-08-2012, 11:14 AM   #8 (permalink)
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I've replaced one boot so far in 120K and still running. Glad to read into these posts to find the quality of most after market are not up to the task as the stock rebuilds.
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Old 06-08-2012, 11:30 AM   #9 (permalink)
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if you have an air leak from the suction hose or ???, it can create quite a bit of bubbling/foaming in the reservoir (look while idling) and fluid will be pushed out the cap. (The cap doesn't really seal the reservoir) and , if the tank and the area under it are oily, you may need to reclamp the suction hose or swap an o-ring or 2 on the fitting on top of the pump (search here for info on that). as said, use dexron III or compatible equivalent - not something just labeled 'power steering fluid'. I used valvoline Dex/merc .


second eveything said about axles except I've had good luck with the one EMPI axle I used.

Avoid torqueing the axle nut with the wheel on the ground during the installation.
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Old 06-09-2012, 09:12 PM   #10 (permalink)
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Quote:
Originally Posted by canubaru View Post
subaru axles have the inner cup painted green.
Yeh, mine is green!
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