Couple of questions. When you rebuilt the pump, how did you put the vanes back in the rotor? Depending on how old the pump is, there were 2 designs. 1st design has a rounded bull nose end and a flat end on each vane. The vanes need to be installed with the bull nose facing outward from the center toward the pump ring. 2nd design, the vanes are the same on each end so it doesn't matter. Also, did you use assembly lube or trans gel or grease to hold the vanes in place during assembly? If you did, did you use a pocket screwdriver or pick to push the vanes out toward the pump ring before you buttoned it up? I ask these things because if the vanes are stuck inward, it won't make any pressure. You can look in the reservoir and fluid will be moving because the rotor is turning, but no pressure. I have had this happen a few times even when put together correctly. One thing you can try is to get the engine warm and snap accelerate the throttle HARD a couple times. That will sometimes throw the vanes out against the ring and it will just start working like magic again. Worth a shot.
One last thing to be clear on the valve. It goes together, spring in pump 1st, then flow control valve with the hex nut pressure relief facing inward and the flat surface facing out toward the big nut. Then the big nut and O-ring. Hope it works.
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