First thing that comes to mind is a question about the tires. Are
they all the same diameter or are some worn significantly more than
others? Others may have a better understanding of this, but I believe
tire diameters are critical on the later model Explorers.

On 10 Dec 2005 20:17:39 -0800, "aem11782" >
wrote:

>I just bought my 2002 Explorer a couple days ago (preowned of course)
>with approximately 42000 miles on it. They had to order me a new
>owners manuel so I was unable to read up on this question myself...
>I have been driving my truck with the "4x4 auto" button turned
>on...figuring this means that if 4 wheel drive is needed it will come
>on automatically...however even with the recent snowfall here in Bucks
>County PA my 4x4 high light has been coming on even when driving on non
>snow covered/slippery roads. Sometimes it comes on when I am going
>around a turn or just accelerating while merging onto a highway...is
>this normal? I don't want to damage my drivetrain but it keeps coming
>on when it feels like..Any ideas on what is happening here? Does
>anyone elses Explorer do this?
>
>Of course when I bought the car 3 days ago we had no snow so I just
>learned this was happening during the past 24 hours and since it has
>42000 miles on it, it is no longer covered on any Ford warranty.....I
>am hoping it is nothing too serious.