05 duramax replaced power steering pump, flushed , still same problem greased everything .squeaks when turning to the left , when moving .also driving down interstate turn slightly to left it will all the suddent vere to the left . wtf.

 

That pull to the left could be a bad tie rod, or out of alignment. These things are notorious for bad inner tie rods. I have to do mine every year on the plow truck... *** well as pitman, and idler arm.