steering anomoly

[xxxscimitarxxx]

Hi to all

i havent physically been able to check this prob yet so lm going on what my son is telling me....

my 92 with engine running and vehicle stationary a vibration is evident when turning the steering wheel left or right....even slightly.....then you let go of steering its stable again.....turn it....increasing vibration....etc etc

son says the whole engine shakes while turning wheel

l asked him to check S.fluid and S.pump pulley but he says fluid level is fine in the rez and he couldnt see any pulley trying to shake loose

its happened after being parked for a few weeks...it was fine when l parked up.....there was a really cold spell in that time but dont think thats anything to do with it

so....my guess is l got an airlock in the lines....somehow?.....so guessing l need to bleed the system and refill......whats the procedure?

but lm open to suggestions for any other reasons for this.......

Dave