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Old 04-15-2009, 05:15 PM   #1
turboL
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Default WTF Power Steering!

So I just put a ej20 into a 96 legacy GT.I modded the stock pump to use a remote reservoir, but that wasnt working to well so i got the whole wrx setup. Anyways, its all in and plumbed....but i am having the same issue as before with the old pump. at idle the pump whines constantly, no matter what i do with the wheel....it doesnt even change pitch when i turn the wheel. When i rev it up to like 4k and turn the wheel, it gives assist and starts to quiet down, but once im at idle....no assist at all. And i hear this squishing sound at the bottom of the column (the rack), sounds like fluid rushing through a port.

The reservoir to pump line isnt clogged, i just checked it. help! Oh and the reservoir bubbles (aerates) constantly at idle etc.

help!

96 LGT 4EAT
04 WRX Engine w/ 04 Pump lines etc. Legacy Rack.
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Old 04-15-2009, 05:48 PM   #2
aDoBo18
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i had that same issue recently on my 06 sti.. and my pump even froze on me and snapped my belt.... i have replaced 3 pumps and still didnt do anything.... the culprit for my car was the top seal on my rack and pinion is leaking.... but i never lost powersteering fluid in my reservoir... i got my steering rack replaced along with a new pump and everything is back to normal.. my suggestion dont get it rebuild not unless you really know the rebuilder and he knows what the hell is really doing... just my .02 cents...
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Old 04-15-2009, 05:58 PM   #3
turboL
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uuuuuuggh. wtf mate. i can rebuild racks...but i dont want to!

are your symptons exactly like mine?
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Old 04-15-2009, 06:14 PM   #4
MasterKwan
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Change the clamps on the line from the tank to the pumpt from the spring clamps to normal screw clamps. You're probably sucking air.
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Old 04-15-2009, 07:24 PM   #5
turboL
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i better be sucking air!
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Old 04-15-2009, 07:48 PM   #6
turboL
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new clamps on.

start car.

at first it started to feel better, like normal bleeding.

then back to nothing and the same noise.
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Old 04-15-2009, 08:02 PM   #7
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It's not an instant fix. You still have air in the system so, your fluid's going to aerate for a couple days. Completely solved my problems after a day or two. Once the fluid is aerated, you might as well turn the car off for 30 minutes and let it settle (like it says in the shop manual).
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Old 04-15-2009, 08:07 PM   #8
turboL
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so having assist one minute, turning the wheel, getting the air out etc etc.....then just NOTHING the next minute is normal?
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Old 04-15-2009, 08:29 PM   #9
aDoBo18
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Quote:
Originally Posted by turboL View Post
uuuuuuggh. wtf mate. i can rebuild racks...but i dont want to!

are your symptons exactly like mine?

symptoms exactly like yours... i get assist then out again.. so on and so forth.... looks like whenever i steer it skips...
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Old 04-15-2009, 08:47 PM   #10
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Hmm, have you tried tempoarily moving the ps res tank to the highest point in the system by raising it out of the bracket(while fluid/engine is cold, not hot,) starting the car and seeing if the bubbles work tehmselves out? Had a problem like that here on an STI recently and that helped the problem.
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Old 04-15-2009, 10:34 PM   #11
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That's a good one too. I've used the same technique. I knew it wasn't the rack in my case because I could run the steering all the way to one end or the other. If the pump was making pressure, I'd have heard the diverter valve. I didn't so, I had no pressure from the pump and the tank was always filled with bubbles.

Saved me a couple hundred on a new pump I was about to buy. Obviously your rack may really be screwed up but, that doesn't seem like a common problem on Subys.

Quote:
so having assist one minute, turning the wheel,
These were exactly the symptoms I had. Air in the fluid is just like air in the brakes. It prevents the system from making the 1000+ PSI it needs.
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Old 04-15-2009, 10:44 PM   #12
turboL
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hrmm. well id like to lift the reservoir up, but this is a swapped car so the rad hose goes over the PS reservoir hose. ughh. i guess ill do it anyways. more mess.

my main concern are the noises. There is a constant whine coming from the pump at all times, when i shut the car off, the whine dies off.

eff it, ill make a video

Last edited by turboL; 04-15-2009 at 10:49 PM.
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Old 04-15-2009, 11:09 PM   #13
turboL
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ok in this video you will hear a constant noise, which is the one that i am not used to.

then i will hop in the car and you will hear the "normal" ps noise.

http://www.youtube.com/watch?v=vb0cj...e=channel_page
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Old 04-16-2009, 12:30 AM   #14
turboL
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bump..
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Old 04-16-2009, 01:04 AM   #15
turboL
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if you want to make ****ed up "power steering" noises.....connect your purge check valve backwards.


FML. problem solved.

How i figured it out:

well i jacked the car up, check the rack, seemed fine. Took off the return fitting to the pump, checked the seal. Fine. turned wheels back and forth while in the air, fine. Looked at reservoir, no bubbles. hrmm.

Put car down, turn wheel back and forth....I have power steering?

Inspect engine bay and physically feel for the noise? hrm, this black thing sure is vibrating a lot. DOh
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Old 04-16-2009, 02:28 PM   #16
vaj
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Yep, that'll do it! So... problem solved. NICE!
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