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Massive power steering fluid leak.

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Old 10-26-2018, 05:34 PM
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Default Massive power steering fluid leak.

So my car is hemorrhaging power steering fluid. Driving the car slowly through a parking lot leaves a blatant trail. Letting the car run 5 minutes in one place leaves a puddle. My first thought was that my 98 Z28 has the same issue my 99 did- that stupid *** metal section that GM calls a 'power steering cooler'. However I read that those were only done on 2000 or newer cars and I visibly checked and there is only solid hose coming from the radiator.

So this has to be a complete failure of the pump or reservoir right? Or are these cars known to leak from somewhere else not listed in the sticky?
Old 10-26-2018, 07:09 PM
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I had a PS leak once and it was the hose. But it was a slow leak.

As fast as you're leaking, I would say spray some degreaser and do a basic 5 minute cleanup in the area and then turn the engine on so you can find the leak easily. Or it might not even need that if it's basically spurting out like a stuck pig. There's not many parts to a PS system.
Old 10-26-2018, 08:07 PM
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As directed above, wipe the steering gear box, hoses and pump down thoroughly. Start your engine and see if you can find the leak. I recently had a Pitman arm seal out of the gear box that was leaking - 48 years old, not surprised. Replaced the box with a 1996 Jeep Grand Cherokee steering box.

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Old 10-26-2018, 11:12 PM
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Big leak should be easier to track down unless you can't see it while the car is running because of the fluid being thrown in your face.

My 98 had the power steering heater and I pulled it out of the loop and hung it by zip ties for short time while I got the new cooler figured out. After a few weeks of being on jack stands I started finding a wet spot under the car. I looked up there and the power steering heater started dripping, guess I picked the perfect time to start removing it.
Old 10-27-2018, 08:38 AM
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Originally Posted by Whisper
My first thought was that my 98 Z28 has the same issue my 99 did- that stupid *** metal section that GM calls a 'power steering cooler'.
This is a horrible nasty rumor. Just open up the hood and look! The cooler is easy to see inline to the radiator hoses. I recall some performance versions of the car had the cooler in earlier years. (My '99 did, until I removed it.)


This sounds to me like an easy thing to deal with, although any P/S leak is a messy thing to deal with. A leak in the pump or a high pressure line will spray paint the entire engine bay with fluid. (Just take a look!) A leak in a return (low pressure) line, the rack, or the reservoir will just flow out.

Have you done any repairs recently? Sometimes people will break the plastic nipple on the bottom of the P/S tank reservoir. You could also have a simple leaking hose or bad O-ring.

Old 10-27-2018, 09:45 AM
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Originally Posted by Crf450r420
Big leak should be easier to track down unless you can't see it while the car is running because of the fluid being thrown in your face.

My 98 had the power steering heater and I pulled it out of the loop and hung it by zip ties for short time while I got the new cooler figured out. After a few weeks of being on jack stands I started finding a wet spot under the car. I looked up there and the power steering heater started dripping, guess I picked the perfect time to start removing it.
So is that power steering cooler joke (the metal pipe) something they did on all LS1s? I've taken a photo of my car and it doesn't have it. So I'm just going to buy a new AC Delco pump off of Amazon since thats the only place I can imagine it leaking.

Massive power steering fluid leak.-2smx9st.jpg
Old 10-27-2018, 09:58 AM
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your pressure or return line could easily be leaking. You should be able to see where the fluid is coming from. The pump could be failing but more likely one of the lines
Old 10-28-2018, 12:40 AM
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O ring on the end of hose....hose itself ( crimps start leaking )....if the pump is leaking it could be the front seal....that seal get hard and brittle in old age.....ask me how I know
Old 10-28-2018, 06:47 AM
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Originally Posted by Whisper
So is that power steering cooler joke (the metal pipe) something they did on all LS1s?
Not all cars - but they did use them on some cars all years. I recall they just put it on the WS6 and SS in the early years and then moved it to all LS1's later on so everyone could share in the pain.
Old 10-28-2018, 07:39 AM
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If the leak is as bad as you say, it will be fairly obvious where it’s coming from and clearly you haven’t even tried to look for it.
Old 10-28-2018, 08:31 AM
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Amazingly, 5 motors later and I still have my OEM PS pump and water pump. I also make a pretty fancy hose kit


Last edited by wssix99; 10-30-2018 at 11:25 AM. Reason: removed solicitation
Old 10-29-2018, 08:06 AM
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Originally Posted by 01ssreda4
I also make a pretty fancy hose kit for PS if youre interested in swapping them while its being replaced.
Fancy, indeed. Do you send these to LS1Tech members for free?
Old 10-29-2018, 09:53 AM
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Originally Posted by wssix99
Fancy, indeed. Do you send these to LS1Tech members for free?

100% free, just pay a small shipping and processing fee!!
Old 10-30-2018, 10:07 AM
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Originally Posted by biketopia
100% free, just pay a small shipping and processing fee!!
exactly!!!!! But wait, there's more!

Old 10-30-2018, 01:38 PM
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I buy all my PS hoses from this guy !
Old 10-30-2018, 02:27 PM
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Originally Posted by biketopia
100% free, just pay a small shipping and processing fee!!
What hoses are those. I know my high pressure line is leaking like the OPs high rate. I haven't got any experience with Patpo steering but I know there's a high pressure line and return through the cooler. That's about it.
Old 10-30-2018, 03:57 PM
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Check the union of the return line to the rack (I believe it to be the bottom right connection as you look at it under the car). The fluted connecting line inside the nut can sometimes fissure and create a slow drip that leaks into the skid plate and leaks out as the fluid travels down hill. The little o-ring on the nut doesn't support any pressure for the hard line.....if that's the issue, unfortunately a new rack is needed.
Old 10-31-2018, 10:08 AM
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Originally Posted by 01ssreda4
exactly!!!!! But wait, there's more!

hahaha
Old 10-31-2018, 10:43 AM
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Get a dye kit (glasses - dye - blue light all in 1) Add a cap full of dye to the reservoir and run it for a while...close the garage door and climb under with low to no exterior light - put the glasses on and click on the blue light pen then look at all your connections. The dye will illuminate when the blue light. It's a lot cheaper than takin' it to some yay-hoo who will charge stupid amounts and just tell ya "well, you gotta leak".....duh!
Old 11-10-2018, 10:56 AM
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Originally Posted by 01ssreda4
Amazingly, 5 motors later and I still have my OEM PS pump and water pump. I also make a pretty fancy hose kit

Im interested. What hoses are those?



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