I can't tell you what is exactly wrong. There could be a kinked hard line possibly. I have a friend who owns both an Intrepid and it's clone, the Concorde. Both have problems with the steering. One has a serious problem with body flex. I've researched the problem online and discovered that these cars have a number of problems with their steering systems. It seems that there are recalls issued for them and to make matters worse, the rack is located high on the firewall which makes them very hard to reach and the heat from the engine tends to cook them which is a source for their numerous problems. Inspect the one you are working on and hope you don't have to pull it out.
Ed
Ed