I have never seen power steering fluid steam. It is oil based and if there is a whining noise, the power steering is blocked or the pump is seized.
The power steering rack and pump probably will both need replacement and the hoses flushed and looked at. With the issue you have, I would get new hoses. This is not going to be cheap, but things like this do happen and especially steering issues with SUVs and 4X4 Trucks. Sometimes big diesel pickups have an integrated hydraulic system for the steering and the brakes.
Get to a repair shop and get an opinion or two. Depending on how long you are keeping the truck, you will have to weigh out how far you carry the repair, i.E. A band aid or the whole 90 yards.
I have never seen or heard of a power steering system blowing or leaking around the cap and never the steam. That is something else.
How does the steering feel?
Does it whine more when you steer it at a dead stop?
Is the fluid brown or smell burnt?
Let me know how things turn out and I. Or someone on our team, will be here to help you.
Wednesday, February 23rd, 2011 AT 12:31 AM