ok, i have a 2003 dakota 3.9 auto, 2 wheel drive. i start it and its running perfect, for about 5 min, then it just dies. it starts back up runs perfect and dies again. ican repeat this time and time again. there are no codes, i did notice that the temp is not rising above 1/4 of the way up, other than that i cant seem to find anything wrong. can anyone point me what to check, thanks.