hi

don't know if any 1 can help me

i have a mk5b cab fitted a 2.0 zetec engine running Tb's omex ecu

the problem i have got is the steering

its sounds very nosie on any lock or just moving the steering wheel abit

i have replaced the rack and the pump

on the pipe from the rack to the pump
there is a valve or a pressure switch wot did go to the ford ecu
can this valve or pressure switch make the pas nosie

many thanks