I own a 2003 Pathfinder LE. To get to the point, I bought it brand new in 2003. When I turn the dial to 4wd (including the auto setting,) there was a faint whirring noise. Never having a 4wd vehicle before, I thought it was normal. There was no warning lights that indicated and error, nothing. Now fast forward to 2008, I brought my truck in for service and they mentioned the transfer case motor (where the whirring sound was coming from) should be changed. I told them that whirring sound was always there since I bought the truck, but only this time the warning light was on. 4wd engaged as normal. I got it replaced nonetheless. Has this happened to anyone out there? Have I been swindled? Opinions?