I just purchased a new control valve, return hose, and pressure hose to fix my leaky system. Everything is installed, and balanced, no more leaks, but there is still a serious problem. Turning right works just fine, but when you get past a certain point turning left, the control valve seems to flip the wrong way and push the wheel more left really hard. What could be causing this? Defective valve? Something I just thought of while I was typing this up. . . A hose kinks when the steering moves to a certain point. Sound reasonable?


Help!!! :confused: :confused: :confused:

 

im having power steering woes also, and may be looking at a rebuild, so I too would be interested in this for "future reference"

Daniel

 

Looked at the hoses and they look alright. Another thing I just thought of though, is the rotation of the control valve on the relay rod might be off from what it should be making the pitman arm->ball stud connection have a funny angle. I'll check into that as well. I really hope its not a faulty valve. I want to DRIVE my car, not just look at it

:confused: :confused: :confused: :confused:

 

woohoo! i fixed it! the control valve was twisted on at the wrong angle... I loosened it, adjusted a little, and it works great now!!! wonderful!!! I'm so happy! :D :D :D

 

I'm glad it worked out for you. :seeya

 

If you go to http://www.corvettefaq.com and look under Suspension and Steering there are three posts. Look under Steering Hose Routing. I have a written description and have scanned two AIM sheets on the hose routings (pump to valve and valve to cylinder).

On the control valve to cylinder AIM sheet there is a diagram in the lower left corner that shows the control valve installation angle. They indicate that when looking at the control valve from the driver's wheel well, a line drawn up and through the pinch slot on the control valve should be 22 degrees counter clockwise from vertical. Here is another way to look at it. Imagine the end of the control valve as a clock, again looking at the control valve from the wheel well on the driver side, the stud that connects to the pitman arm should be pointing at 11:30, the pinch slot would be roughly at 6:45.


Both sheets also give some installation angles for the hoses. I realize that measuring the exact angles in the vehicle is impossible, but they will get you in the ballpark.

I would strongly recommend as a final check, turn your steering wheel from full lock to full lock and check the motion of your power steering hoses through this full travel. This will insure that your hose routings are adequate.