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Old 08-10-2003, 08:52 AM   #1
SCOOBER
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Default SVX Power Steering Problem...

I have a friend who owns a 92 SVX and she is having a little trouble with the car. After you drive it for a little while the car spews power steering fluid out of the top of the pump, from the lid. Any idea what could be causing this? I am going to look at it today in person, but I just thought someone might have seen this before. She said the pump was replaced last year and I was wondering if something may have gotten in the lines ...sealant or dirt...and clogged the pressure or return lines, causing the back flow into the pump. The dealership wanted to put a rack in at $800 + labor ...the car has 40,000 miles on it. I don't know why the pump was done either, but I might be able to get a work order or something from the glovebox.

Let me know what you think!!

Doug
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Old 08-10-2003, 10:01 AM   #2
richeich
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I used to have an SVX, but never had problems like that. I think they have had PS issues, though. If you don't get help on this board, check out the SVX Forums. http://www.subaru-svx.net/forum/ They've probably got it all covered one way or another.

Rich
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Old 08-10-2003, 10:08 AM   #3
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Send Paisan a PM. He has a 92 SVX and is having PS problems as well although not the same.
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Old 08-11-2003, 01:46 AM   #4
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I had power steering leakage problems. I ended up swaping in a newer model RS pump resevoir to curb the leaking issue. I dont know if that will work for the SVX though...
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Old 08-11-2003, 08:46 AM   #5
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It sounds like the pressure relief valve is sticking. I'm not sure if it's in the pump itself or in the rack. I'd have to take a look at some diagrams to be sure, but it sounds like it's sticking closed when the pump is not needed, and pressurizing/spewing fluid out the top.
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Old 08-11-2003, 11:59 AM   #6
Puckaveli
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The relief and flow control valves are in the pump housing. The flow valve controls the discharge flow, when the pump speed increases the flow it moves the valve spool and increases flow.

I would say replace to pump.

Last edited by Puckaveli; 08-11-2003 at 12:09 PM.
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Old 08-11-2003, 01:23 PM   #7
svx_commuter
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I think there is a way to over flow the suction tank. Overheating the ps fluid. There is a loop in front of the radiator for cooling. It may be blocked with leaves and stuff or pinched. It is flushable. The pump pressure is highest when the system is cold right after starting. Anything related to the relief valve would occur then. What happens if you idle for awhile? Same problem? Is it heat or engine rpm that makes it come out? Could be the blockage if RPM related.

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Old 08-11-2003, 11:46 PM   #8
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Wow...good response to this one! Thanks for the thoughts thus far. I went and looked at the car Sunday...and when you drive it the power steering does feel a little strange...kind of like if you have air in the system. It would not overflow from the cap at idle, but I drove it a couple of miles and it leaked out the cap during the drive. I started looking around the car and I found a small leak on the passenger rear of the engine bay. After lifting the car and sliding under for a closer look, I noticed teh power steering lines are very rusty and one is seeping through the metal...you can wipe it off and it seeps right back again. I am going to replace those and see if I can flush the lines out....and maybe check the pump flow from a couple of bottles of p/s fluid. Oh, how can you tell if the tranny has been fixed to prevent the failures that are so common on the early cars? Is it possible to tell from an external visual inspection?

Gotta call Subaru Parts.com tomorrow and get p/s line prices.....those should be ugly!
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Old 08-12-2003, 07:25 AM   #9
svx_commuter
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There are 2 different ps hose set-ups for the 92. Subaruparts.com has parts list and diagrams. Go to parts, then click on the SVX.

Most people have added external paper filters to clean the AFT. It is on most older auto Suby's. You got one by the belly pan near the battery?
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Old 08-12-2003, 10:04 AM   #10
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I didn't see an external filter for the tranny...but I wasn't looking for it either. I will look again when I go back up this weekend...is it just an oil filter style setup on the tranny lines?
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Old 08-13-2003, 07:10 AM   #11
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It looks pretty much like a fuel filter in the tranny lines.
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