TJ 225E hydraulic issue

[EFR]

Greetings folks;

I'm looking for some insight from the experts;

I have a TJ 225E I've had for about 9 years. Just the other day I started experiencing issues with the hydraulic system. First sign was winch brake cylinder would not release under idle, but would if I increased engine rpm.  I thought hydraulic fluid may be a bit low (I blew blade cylinder line a few days ago), so I topped it off (wasn't down much).  The issue has persisted the last two days intermittently, to include very slow response of steering cylinder and raising of blade. The hydraulic pump was new three months ago (aftermarket parts).  

I changed hydraulic fluid today and put in new hydraulic filter (put in new filter with new hydraulic pump install three months ago), but no improvements. 

Any ideas?  I'd hope a brand new pump didn't fail?  

Thanks for any help or insight. 

[fluidpowerpro]

Often times steering and brake systems have a priority flow control valve built into them. The purpose of the valve is to make sure critical functions get priority flow before other functions.  It sounds to me like your priority valve is acting up. It's common for the priority valve to be built into the end cover of the pump.