Well, I took off the pump and took off the air relief valve, pressure valve assembly, and reservoir to make sure nothing was clogged. I didn't see anything, but it may have made a difference. Next, I took out the solenoid on the rack and cleaned the screen...pretty dirty. I re-flushed and bled the system and now it works great. I don't know exactly what the problem was, but it is fixed now, haha. Thanks for the help, guys!