Rack and pinion

i have a 1998-ford taurus,that the dealer,say is leaking.i only have to add a little power steering to it every two month.how long before i have to replace it.

No way to tell. It could go on this way until the rest of the car falls apart around it, or it could start leaking like a sieve the next time you start it.

Since this car is well out of warranty, perhaps a second opinion from an independent shop would be in order. No need for the dealer to work on it.

I agree…get a second opinion and check out sites like http://www.ford-forums.com/ford-taurus/