I replaced the steering rack with a new one around 3 months ago.
topped of P/S reservoir. Turned the steering through several times and
topped off again.   Worked for maybe a month, then when my wife was
driving it, she said the P/S was making loud noises and seemed to have
lost the power steering.  I found the reservoir empty.  No wonder.  So
I refilled it and checked for leaks....did not find one.  WHere did
the fluid all go?  Well after refilling reservoir, there are no longer
any noises, but the P/S just doesn't work, have to muscle it into
turns.   I can't see why loss of flud would have damaged the rack, so
I guess the P/S pump is shot? Right?  But when I remove the reservoir
cap and watch the fluid, it seems that  there is still a flow or
movement there.  Unfortunately there seem to be no connections so that
I could put a press. gauge on the lines and check if the pump is no
longer working.   Guess that I just have to replace the pump and
figure out what happened to the fluid ?