Defective drive shaft caused roaring vibration at highway speeds. Dealer replaced drive shaft under warranty.
At around 15000 miles the rear differential starting whining, a common problem with 02 to 05 Explorers. Dealer rebuilt rear differential under warranty. (TSB 05-12-6)
Do Not Use Curse Control At Speeds 35 mph or Less, the Engine Will Shut Down! Luckily my wife didn't panic when this happened. I have seen many complaints on this and apparently Ford can cure this with a $120 PCM flash.
Overall this is a very nice truck. The four wheel drive system works well in snow. This rig makes many trips to the slopes during the winter without any problems.
Gas mileage is what it is... 16 mpg in town, 20 mpg highway.
3rd row seating works well even for teenagers and medium sized adults.
4.0L V6 makes good power, seems stronger that its rated horsepower.
The one problem I have with this vehicle... they actually make them without cruise control. These days when I look for a new car I don't even look for cruise control. Well, that was a mistake on my part. Shame on FORD for making a car without cruise control.