im still getting used to how to post new threads so sorry if this is already on here. i was playing witht he 4wd on auto one day to see how well it worked and after i put it back in 2wd it said service 4wd on HUD, it wouldnt even let me put it in 4wd. i went home thinking i had broken somethin. went inside ate after bout an hour i came back out and thought i would give it another go...worked jus fine i even went out and played in the mud some and didnt give me any engine codes or anything. jus like it never happened...anbody else have this problem ever?