Here's my problem. 70 chall 340, auto. Total rebuild, getting ready to move the car to test drive, I made it a few feet, no power steering, trans slipping. Added trans fluid, when I added the power steering fluid the wheels turned fully right and was very difficult to turn to the left, the power steering pump was also over heated. I read in the mopar manual that the valve assemble should be loosened up and moved forward or back to eliminate any self steering. Does that sound like the cure? or could it be something else?