Freightliner power steering problems

Sounds like a STEERING GEAR. "Box" is way too ambiguous.

You'd need to hook up your PSSA gauge and verify your flows and pressures to determine if the steering gear is relieving or not and then how much it's leaking past the seals. Then you can make the assessment for steering gear and/or pump. Any certified FTL dealer will have access to the STI492 form that lists out what things to check as well as the workshop service manual to follow the procedures.

You weren't overloading your front axle...were you?

 

Did it finally got fixed? and what was wrong at the end?

 

Any update on what solved the issue.? I have the same problem

 

I’ve heard of a problem like this, that finally turned out to be the slip joint in steering shan’t binding. Driver ( after replacing everything else) replaced the shaft. Problem solved. Hope that helps

 

Half pint what fixed it? I have the same issue with my 2016 cascadia.

 

I’d like to know also. There’s a thread on here about 2-3 mos ago. Same problem, it turned out to be slip joint in steering column

 

Isn't there a pressure relief valve for both sides that needs to be set so when you turn full lock it doesn't create to much pressure? Maybe that went bad.