hi dave thanks for youre reply.theres no codes present or stored in the system.theres no ps pressure switch i could find in the system,just for the ac system.the ps belt is ok and tight.it just shudders in drive running with the foot brake on.
i have a 2005 lexus rx330.im getting power stearing shudder when eng is at idle in drive.i tried flushing the fluid with lucas toyota ps fluid.still does it.shouldnt the fluid be moving in the resivua while the eng is ideling..its nott doing anything.there is no pump noise or leaks anywhere in the rack or system..thanks paul [dentremontp@yahoo.com}