There are seals that can be replaced, but if it is noticeably leaking, then you are likely going to need to replace the rack. It can be time consuming but it is well worth it. Replacement racks can be found either in other Supra's or you can find rebuilt ones online, those, however, usually require you to send yours in.
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No, the power steering is entirely a separate and sealed system, wholly external to the engine. The power steering pump pushes the fluid through a high pressure hose into the rack and pinion-the steering gear mounted below and behind the engine-and holds pressure within the rack that enables power assisted steering. At the same end where the power steering fluid hose enters the gear will be a fitting for a return line back to the fluid reservoir. These two hoses are usually routed close together at least part of the way, some may even be held together with brackets. Leaks could develop at the pump, the fluid reservoir, or the two hoses to and from the rack and pinion, or the seals inside the rack and pinion may have failed. You should be able to find the leak-it will only leak to the outside-to check the rack and pinion for leaks, right where your tie rods come out of the gear and go to the wheels for steering, will be a small rubber boot encasing the tie rod and the end of the rack assembly-on both ends is a boot and a tie rod-peel back the rubber boot from the gear ass\'y, it should be dry. If a lot of fluid, the seals in the rack and pinion are gone. It will have to be replaced. Hopefully you will find a leaking hose or fractured reservoir, but keep looking, air flow may be blowing the leaking fluid back and under the car. Good luck, hope it\'s not the rack and pinion.
If that's the case then the oil seals of the rack and pinion should be replaced. If the seals are worn out it tends to leak and can definitely feel a loss of power. If it still leaks even after the replacement then the rack and pinion should be replaced.
There are instances that after oil seal replacement it still leaks it's because that the rack and pinion has severe damage.
Hope this helps and thank you for using FixYa! Have a good one!
Not without completely reconditioning the steering rack, no.
In practice, it's always far quicker to fit an exchange steering rack. It costs a bit more than DIY but you're up and running faster, don't need to invest in special tools and you get a warranty on the entire unit.
if you have a leak from the back of the rack your sector shaft seal is defective. to replace it you need to remove the rack and do it on the bench.remove the locking nut and pull the seal from inside.if you are a rooky replace the rack with a rebuild one. good luck.
There can be many causes for a power steering leak, from loose hose clamps to failed seals inside the steering rack. The whole area needs to be cleaned down thoroughly and the leak source found and whatever the required repair is carried out from there. A power steering specialist is probably your best bet for speed and cost of repair, but you are best to get a few estimates around town and choose the shop that appeared the most helpful and friendly, not necessarily the cheapest.
Had the same problem if you fill up the power steering fluid, jack the car up off its front wheels turn the steering wheel side to side a few times...check the ground for any power steering fluid, if you notice a leak you will need steering rack reconditioned or just the boots replaced..also belt may just have snapped.