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Discussion Starter #1
Hello , my 2012 Kia Sorento 2.4L on the passenger side rack and pinion seal or boot is leaking just a tiny bit I can see it’s wet from the outside on smaller clamp side , mostly I can see little bubbles if the engine is running , there is enough power steering fluid in , power steering works fine and no problem , is something I need to worry or not , can I replace just the seal and did someone replace , and can anyone tell me if it’s grease or fluid inside the seal , I’m sorry if someone else post it a thread about this , I searched forum and couldn’t find anything, is this common like this , or do I need to worry ,
 

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A leaking steering rack is not going to get better on it's own and will only leak more as time goes by. Replacing this steering rack is not a job that the typical DIY would tackle. Most shop will replace the rack unit with a rebuilt steering rack because parts for a rack are hard to find unless you are a re-builder doing hundreds of units at a time. KIA inforamation shows that the subframe must be dropped to get the rack out. The shop flat rate hours for Removal and Replace of the steering rack is 5 hours, which does not include the toe-in adjustment, and another 1.5 hours to rebuild the rack. A new KIA rack is part #577000W100 @ $909.53. It is going to take you way longer then this to do the work as no DIY'er is going to beat the flat rate time. To get an idea of the KIA shop charge for this take the 5 hours X dealership shop rate + the price of the steering rack + misc shop charges. You can find rebuilt rack on Rockauto Parts for around $400.00. Not an easy or cheap fix.

As a DIY, you could try draining some power steering fluid out and putting in some fluid with a seal softener in it. Try this and see if it stops or slows down the leak for now. Here is a couple that may work:

https://www.goldeagle.com/tips-tools/what-causes-power-steering-fluid-leaks/

https://barsleaks.com/power-steering/how-to-fix-a-power-steering-fluid-leak/
 

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Excellent reply from jolt2 .......I’ve never done a Kia rack but I’ve done others and everything he says rings true.

Flushing or changing out power steering fluid is usually not something in your owners manual maintenance schedule but it should be done if you intend to keep your vehicle a long time. The fluid gets dirty, and under extreme pressures causes wear to the very close tolerance parts.

Changing your fluid is cheap insurance against a very costly power steering rack replacement.
 

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Discussion Starter #4 (Edited)
I do understand a little bit on cars , so what I did is checked again yesterday, the level of power steering is where it should be , my friend fixes cars , so he suggested and gave it to me a good quality zip tie , and he told me that I put next to the clamp which was enough room for zip tie , so I did put that and I tied pretty good , and drove it for like at least 50 miles and there is no leak and there is really dry around it , so I’ll keep on eye , my power steering as I said it work perfectly fine and no noise or hard turn etc , so can I use some power steering leak stop , if yes how much should I add ,also should I change the power steering fluid or not ?
 

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If you put a zip tie on the rack boot and it stopped for 50 miles, it probably is still leaking from the inner seal and just accumulating in the boot.......I do hope I’m wrong.
I wouldn’t do anything ( except possibly adding stop leak as per the instructions on the bottle ) until I was absolutely sure the leak is stopped.
 

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Discussion Starter #6
So, should I take the zip tie off and put the power steering leak seal or , what should I do any suggestions
 

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Drive it and watch the fluid level, it can’t hurt anything as long as you keep it full.

If you have a leak and it’s collecting in the boot you’ll know it eventually. The boot can’t hold it forever.

Stop leak can’t hurt anything, add it now or add it later.....your call.
 

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Discussion Starter #8
Okay , I just took that zip tie off , left with the factory clamp as it was before , I went at gas station here and didn’t find Lucas stop leak but I found STP power steering fluid + stop leak , read reviews were okay so I took half of fluid from reservoir and fill it with STP stop leak same amount that I pump it out , so to note the power steering fluid level won’t move like it’s same level since 2017 when I purchased the car for my wife , like I don’t know how to explain it won’t drip like in driveway but it’s noticeable when u check to the clamp , maybe will stay like that maybe will get worse I’ll keep monitoring for now , so should I make an appointment to kia dealer to check it and should I change power steering fluid , or that will not fix the problem , ? It’s okay to drive then ? Thanks for help again
 

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Okay , I just took that zip tie off , left with the factory clamp as it was before , I went at gas station here and didn’t find Lucas stop leak but I found STP power steering fluid + stop leak , read reviews were okay so I took half of fluid from reservoir and fill it with STP stop leak same amount that I pump it out , so to note the power steering fluid level won’t move like it’s same level since 2017 when I purchased the car for my wife , like I don’t know how to explain it won’t drip like in driveway but it’s noticeable when u check to the clamp , maybe will stay like that maybe will get worse I’ll keep monitoring for now , so should I make an appointment to kia dealer to check it and should I change power steering fluid , or that will not fix the problem , ? It’s okay to drive then ? Thanks for help again
Is it possible that you didn't see the post above yours?
Drive it and watch the fluid level, it can’t hurt anything as long as you keep it full.

If you have a leak and it’s collecting in the boot you’ll know it eventually. The boot can’t hold it forever.

Stop leak can’t hurt anything, add it now or add it later.....your call.
 

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Discussion Starter #10
I’m sorry didn’t see the reply or post above , so I purchased Lucas power steering stop leak , , i haven’t ad it yet , any ideas how much should I ad on power steering reservoir, this stuff is really thick , will this damage power steering pump or it’s okay , thanks again for the help
 

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Besfort, your best bet is to contact Lucas about their product to see what they recommend. I know the links for the other stop leak brands had support for question about their products and I would think that Lucas would too.
 
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