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From what you are describing here, it sounds like the problem is going to be the steering rack. When the steering rack has a leak, it's usually the seal at the end which will leak out through the boot. Many times, it will need to be under pressure before you can see the leak. If you have the vehicle up off the ground, have someone turn the wheel while you are inspecting. Check the end of the rack assembly and both ends of the boot. For an image view, click here (red arrows show common leak spots): https://www.dropbox.com/s/niloyz6fcrp6sfh/sable-rack.psp?dl=0
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