Good day,

I am a recent new owner of an 06 f350 Powerstroke. Steering Box developed a leak so I decided to replace the box and go ahead and do the pump and hoses while at it. Pump would make some noise so i figured I'd just do it all and be done with it or so I thought. The job was a pain, much harder than the pump and boxes i've done on the older 7.3 powerstroke. Anyways, used all OEM components (pump was a rebuilt rotorcraft, can't buy new anymore) and everything seemed great for about a day. I tried to bleed the air out per standard practice of turning the wheels with the truck off the ground. At startup and during the first day it had almost no noise at all and the steering felt much easier than the old pump.

Then the pump started to develop the standard annoying ford power steering whine that I hear all the time. Drove it over the weekend on a 160 mile trip and the noise just kept getting worse. As of tonight I can't turn the wheel if the truck is stopped even with my foot off the brakes.

I used synthetic ATF for fluid and there is absolutely no foam or aeration in the reservoir. Good news is I don't have any leaks but the bad is I now don't have power steering

It does make a much louder whine or squak when I hit a large bump turning, I guess thats just the sound of the pump being stressed more. I am guessing the pump just crapped out but before I do it all over again i'd like to know if anyone has any input.Thanks!

 

Sounds like a obstruction in one of the hoses. or the pump is bad. I would check the hoses first. Make sure that there isn't anything in the connections where the hoses go to the pump and steering box.

 

all ways blow air thru hoses... New or otherwise,, before final connections..

but based on your description... bad pump.

my experience.. a reman.. will fail right off.. or work for years.