?GOES WRONG IN 1998's

I am tempted to purchase a 4.6L 4X4 1998 XLT with 90K miles at a great price. What should I prepare for in the way of repair/maintenence. In other words what have you all had happen around this mile mark or very soon after???

Look through this forum, then look at another brand of truck. And if after looking around here, you still want an Exped, at least get the 5.4. Like, mine.