Posted by Jimer on January 17, 2010 at 16:09:37 from (198.174.213.170):
I have a 300u with power steering (sometimes). The power steering works when the engine is at maximum rpm and moving. Otherwise, very little or no power steering. I believe the gear box has been changed and it has one from a IHC 340/460 on it. I have put a new power steering pump on it, I have replaced the regulator and safety valve block with one I believe is good. In the line going to the control valve, it measures 900# psi when the line is dead ended, 650# psi when not turning and 350# when turning. I am thinking the control valve must be the problem, what are the thoughts of the readers? Thanks for your comments.
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