I have a 2012 LR2 that I'm working on, I changed the power steering pump because it was whining. Now that I have the new pump the steering is really stiff. I have the front lifted on a floor jack and I turn the steering from lock to lock to bleed the system but air bubbles just keep coming. I have done this well over 40 times, and I've checked the hoses for leaks but there are none. I have tried leaving the steering wheel turned left and right and let the vehicle idle for a few minutes. It steers perfectly smooth while in the air but once on the ground it's stiff. Is there a bleeder valve anywhere on the system or an easier way of bleeding the system.