Thanks for the info.Truck is still sitting in the shop wainting on me,We must not be that slow.Maybe next week Ill get back to it.

clean the priority flow valve in the bottom of P1
Does this truck have freezer oil? If so the pump might be worn out.
I have seen bad motor brushes do this as the module cannot sense the load on the pump. Most prolly is the worn out pump not loading the motor...

On vacation right now but I have the feeling its going to be waiting on me when I return.Thanks I check it out when i get back 36v var pump

Sorry Proshadetree, I didnt see the header at the top stating RD5000. Same results though.

I take it your working on a 5000 series reach. RR5200 maybe?
If so the first thing I would have said would have beed a stuck SVE on the man block, but since you changed the whole block, I might say P-1. I've seen a lot of P-1 failures lately. Symptoms have been no accessory functions unless you turn on P-2 (or on 24 volt systems crank up P-1 speed) & hard steering. If your a Crown tech you know how to see what kind of pump you have ( variable or standard ). I'd put my money there. Feel free to send mod and ser #. How many hours on it?