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Frank Nitti Posted on Jan 03, 2015
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I keep bursting rack & pinion boots, does that mean my power steering pump is bad

Well I replaced the passenger side bellows (boot) because it burst under pressure so now the driver side burst after that my theory was the power steering pump return lines weren't working properly because the rack & pinion boot fills up and pops

1 Answer

Ed Greason

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  • Posted on Jan 03, 2015
Ed Greason
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No, if you have power steering fluid leaking into the boot it means your power steering piston/rod/cylinder has leaking seals.
replace the cylinder (what you attached the boots to) or rebuild the packing.

Testimonial: "So is that basically replacing the rack and pinion? The boots have a hole for a small tube on them so I started the car and fluid comes out of this little tube into the boot and just keeps filling so are you saying the relief for the pressure in the boot is in the rod/ piston? And where would I get a rebuild kit for that?"

  • 7 more comments 
  • Ed Greason
    Ed Greason Jan 03, 2015

    no. omg. the rack and pinion is exactly that. a pinion gear connedted to your steering wheel shaft, rotating when u move the wheel, and the pinion which moves left and right as u turn the wheel.

  • Ed Greason
    Ed Greason Jan 03, 2015

    the power steering assist unit complicates it more. there is a pressure sensor connected to the unit that knows when u turn the wheel and add a certain amount of pressure. this sensor opens a valve(or it may be the actual sensor valve) that opens pressurized hydraulic flud(power steering fluid) that lets pressurized fluid from the PUMP to apply to the HYDRAULIC cylinder/piston that is connected to your "rack", "assisting" the pressure applied to the turning force.

  • Ed Greason
    Ed Greason Jan 03, 2015

    all of these "pistons" "cylinders" "rams" "rods" that have hydraulic fluid pumped to them must be sealed against the positive(or negative) pressure applied to them from the POWER STEERING PUMP.

  • Ed Greason
    Ed Greason Jan 03, 2015

    seals are usually made of what is called "packings", because they are under pressure and require high pressure sealing. they are usually multi layered seals that fit tightly around the outside of the piston or rod, and inside of the "cylinder". to prevent leaks under often thousands pounds per square inch pressure of hydraulic fluid.

  • Ed Greason
    Ed Greason Jan 03, 2015

    these "seals" or "packings" can be worn or damaged causing the leaks that you seem to have.

  • Ed Greason
    Ed Greason Jan 03, 2015

    replacing those "packings" could possibly fix your leaking problem.

  • Ed Greason
    Ed Greason Jan 03, 2015

    you have to remove the hydrulic "ram" from the vehicle, disassemble the "rod" assembly with piston and check/replace the packing/seals.

  • Ed Greason
    Ed Greason Jan 03, 2015

    it is basically simple, but if you don't have the tools and/or mechanical aptitude, it would probably be better off to just replace the entire unit with used, rebuilt or new unit.

  • Ed Greason
    Ed Greason Jan 04, 2015

    the hole in the boot is for air to pass because boot will compress or decompress. the hole allows this without balooning the boot and blowing it up. the hole is not for a hose

    it should also be on the lowest point of the boot.

    then if water was sucked in, it could possibly drain out.

    rebuild kit would be from mfg of the hydraulic mfg.

    if you have the dimensions exactly, you could fin parts from any hydraulic cylinder mfg. where I live there is a company that specializes in hydraulic hose/cylinders/ parts. seek locally for company that does hydraulic hoses, etc. they prob will help you.

    if that doesnot work, GRAINGER would probably be your best bet, but you would have to have exact dimensions or specs.

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1990 LEXUS LS400 power steering heavy leak when making right turn. replaced high pressure hose..what's next

Steering gear(aka Rack and Pinion) look for leaks at the bellows boots over the inner tie rod ends.
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Need picture to view underneath iszuzu rodeo passenger side

He was referring to the steering Rack and Pinion unit. It has rubber bellows shaped boots on each end of the rack to protect against water and dirt from entering the seals
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Rack and pinion? have play in wheel no sign of leaks new power steering pump installed

Hi Gunny, If your vehicle is fitted with rack and pinion steering also check the rack ends for play. The rack ends are the rods which the tie rod ends screw onto. The other end fits onto the rack of the rack and pinion. To work on those you will need to remove the rubber boots and loosen the locking washer, they can then be loosened with a wrench. If they are worn the play will be evident in the steering. When replacing them also replace the rubber boots. If the boots are worn and road grime and dust enters, you will see leakage from the rack and pinion in the near future. I always thought the Dakota was fitted with a steering box? Regards John
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What are bellows boots on a honda

the bellows are the the plastic tubes that protect the inner tie rod end/rack from dirt and water. If there is fluid coming out of the bellows than the rack is leaking. The normal repair is to replace the rack with either a remanufactured or new rack and pinion.

I’m happy to assist further over the phone at https://www.6ya.com/expert/jeremy_d728a59f986299fa

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Have a Lincoln Cont. 1999 that eats power steering , does not leak out any where, but smells like its being burnt. Where does it go and how to fix ?

there has to be a leak if you are continually topping up the steering fluid.check the power steering lines closely for leak it may just be a pinhole leak.if this has rack&pinion steering check the bellows(rubber boots on either side of the rack)the fluid could be leaking into the boots past the inner seals.if it is then the rack will have to be replaced and an alignment done.check the power steering pump for any leaks as well.if it has conventional steering check the steering box seals for leaks and the hoses as well.
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There is power steering fluid dripping from the passenger side boot covering the rod that connects to the wheel. Could a simple replacement of the boot be the fix, or is there a problem with the main unit...

No, the boot only keeps dust out of the inner tie rod joint--it is not intended to hold back fluid. The rack will have to be rebuilt with new seals. Sorry. :o(
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I have a major power steering leak i cant track and its not coming from the pump

What can commonly happen is the seals inside the rack and pinion and allows the fluid to fill the bellow boot(accordion boot). Take a small pick and poke the boot on the steering linkage. If fluid pours out, replace the rack and pinion unit and then have it aligned. If you need further instructions, feel free to let me know.
2helpful
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Racket pinion steering power steering fluid

This is a very common issue with this car.The problem of the Ford Taurus spewing powersteering fluid out of the cap is caused by a loose nut on the passenger side of the steering rack. This not only allows fluid to leak past and fill the rubber boots up on the tie rods/steering rack, (the right hand side fills too, because of an air vent equalizer tube that connects both sides), but it also allows the system to **** air which causes the foaming and spewing from the pumps cap/dip stick.

The cure is to jack up and secure the car, remove the passenger front wheel.
There is a rubber accordian style boot on the tie rod end. Use a super long flat screwdriver to pry under the far side clamp that secures it to the inner part of the rack and break it off. Now use a pliers to squeeze the smaller clamp on the side closest to you and slide it off and all the way to the end towards you.

Slide the whole rubber boot as far as you can towards you so you can see the large round nut that is inside the end of the rack. You'll know this is the problem when fluid pours out of the boot.
The tie rod goes through the center of this nut. The nut has four holes around it on the face of it. I assume they used a spanner tool to install this at the factory, but there's no room for a tool while the rack is on the car, so you'll have to manufacture a long instrument yourself.
I purchased about a 3 foot long narrow metal rod from a hardware store, then I used an angle grinder to shape one end of it into a blunt cone shape that would fit into one of the holes. It's awkward to do, but using it on all angles avoiding the brake line and wheel rotor you can tighten this nut by hitting the rod with a hammer. The nut will turn about 1/8th of a turn, then re-angle your rod into the next hole above the one you just did tightening the nut to the right (clockwise).

The nut on my car was loose by three full turns. The driver's side of the rack has a different setup, you don't need to try that side, the passenger side is the only side that is affected. Once you have this nut good and tight, I used a zip tie to clamp the big end of the rubber boot back on the rack, then pushed the rest of the accordian boot back into it's original place and put the smaller compression clamp back on the end closest to you.

Put your wheel back on, fill your ps pump back up with fluid and start the car, turning the wheel back and forth to purge the air from the system. It'll still be foamy for a while, but keep shutting the car off, let the bubbles disperse, add more fluid if needed, etc.
I learned this from another forum where many, many posters had tried this and it worked for them also.
Good luck!
2helpful
1answer

What do bellow boots do?

all they do is keep dirt and water from getting into the steering unit, they are seals, if your steering is acting up it is to late, the damage has been done by the torn boot.
0helpful
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Must add power steering fluid every two days.

Hi

Yes you can replace the steering rack rubber boots OK.

But if you are loosing fluid, it sounds like the internal seals are leaking, allowing the fluid to fill up these boots, and subsequently bursting them, so you will be back to square one.

Better to fit an exchange steering rack !

Good luck !

A FixYa rating would be Nice !......... Thanks.....John.
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