I've owned 4 jeeps, 1993 4 cyl, 1997 4.0L, 2008 unlimited and another 2008 2dr x. From owning the 1997 (a TJ) I only ever had one problem, the fuel pump went out and acted like a no spark issue. Things to look for I would say check for a lift with oversize tires, turn steering wheel lock to lock...