I recently had my car totaled by a teenager and I am now in the market for a used vehicle. I have never owned a truck before, but I am interested in purchasing a 2005+ Pathfinder and was looking for any tips on what to watch out for. First, what are some of the problem areas I should look out for when looking at one ? I prefer to get an Auto Mode 4WD model, I believe that is only available in the LE , is that correct ? Is there a good way to test the 4WD system when I go for a test drive to detect if there has been any abuse or any problems with the drive train ?
any input would be greatly appreciated

thx