Quote (AspenSniper @ Jan 9 2016 06:30pm)
it's not the pump, i did know that you'd hear a whining sound. it's not that. I did a power steering fluid flush, did that today. cant tell a difference yet.
it dont necessarily have to be whining. thats just the most common symptom. you need to take it to a GOOD mechanic who can check the power steering and maybe even the steering box and rack.
your problem isnt coming from the pieces you listed. i know when the evo valve goes bad it can cause extremely touchy steering at highway speed but im still not sure if it can not allow full pressure at low speed like its supposed to. we've had semis that when the ps pump were bad and you were turning into a place at an idle that the power steering would almost lock up you had to rev the motor to get your power steering back. only thing i can tell you is if you find yourself with hard steering like you describe see if revving the motor frees the steering up. if it does replace the power steering pump immediately and dont get the cheapest one you can find you get what you pay for.