Sorry about that statement. I was thinking about it wrong. The liquid line selonoid closes so the liquid pumps into the condensor, which should raise the head pressure and lower the suction. This is not the problem. I have all good numbers except the suction line temp. I agree that it is probably a bad TXV. This was my original thought, but I was thinking too hard about the pressures being correct. I assume that this TXV doesn't shut down all of the way, which would cause a pump down type senario with the pressures.
I have not done much work with these larger TXV's that can be adjusted or the power heads changed out. I am wondering if someone can give me a briefing of how to adjust the TXV (I think that you take off the nut/cap on the bottom and turn the adjustment screw, but I don't know how much). I am also wondering if the power head can be changed out(if it is that type which should be evident by a nut at the bottom) without pumping down the unit. In other words, do the little rods that come through the valve body where the head screws off of the top leak freon by? Thanks guys!