LEXUS GS450H F SPORT STIFF STEERING

[lexus.gs.uk]

hi my power steering has gone slightly stiff and self centres back slowly and when i do a full lock either side theres a slight grinding noise from steering wheel what could this be ? rack and pinion,ball joints, tie rods ,alignment ? 

[Steve]

Good morning

Sounds like rack or steering pump to me. Not sure if these are hydraulic or electronic racks in the GS, it sounds like lack of power steering fluid. Give the resevoir a check (if it has one)

 

I would get that looked at by a garage / dealer if the resevoir is full.

[lexus.gs.uk]

hi steve  these 4th gen gs are electric power steering as far as i know mine the hybrid