2000 Freightliner Century Power steering intermittent

I like TRW Good as it gets brand new. I shopped steering boxes a few yrs back found best rebuild $650 in Ohio supposed to be good product can’t remember name somewhere around Along I 75

 

I don’t know anything about that but sounds very possible. A friend adjusted one on a 1970 Plymouth his moms car it never was Same -squirrelly seems as if you could start it up with fluid in a bucket and hoses in bucket instead of reservoir and check pump same way you check a fuel pump. Then hook to box and other hose from box in bucket and check flow through box. Maybe needs to be bled out through box to get air out after draining fluid. Although fluid should work it’s way out by running w cap off resevioir for a while .too bad you cans connect hoses from m another trucks pump. I keep thinking of old Ford pick up trucks after sitting king pins would freeze up so bad need replacing meanwhile detroying rag joint connector on shaft and plastic bushings in column. Amodelcat sounds knowledgeable on valve. And a valve is something to go bad or plug from sitting.My water pump impeller snapped clean stayed together and only spun partially. Same thing on an old dodge I had no play but pump would still spin a bit figured out in springtime after changing heater core . First time I saw that and made me check my truck WP after it leaked out weep hole .I wonder if that’s your problem impeller turns somewhat till it gets slightest resistance then slows then pumps a bit while not under load. Be easy to check with pump off only other way is on Detroit remove air compressor not worth it

 

You need to check out a new post on Mechanics forum on this site titled bleeding steering

 

Well? What was it pump?

 

You greased kingpins real good I’m sure. What if you bleed with truck running fluid into a bucket coming out of box. procedure on other post how to bleed ps worked. What about u joints on steering column.I would try bleeding some more. Box is $$$

 

The other post does not bleed into bucket that’s my idea

 

Did you already replace box?