I've had a problem right now with my 2008 Quest. It has been going on now for 5 years. No One seems to know the solution. The Van is used on a daily basis and will not start after 1 hour after of turning the vehicle off after having no problems for a 2 months or more. I will have the Van jumped and it will be fine for 2 or more months and then it will go totally dead again. Had the alternator looked at and was told it was fine and told the battery was fine also.. Already had put a new battery in it. It seems to be happening now more frequently...like once every 3 weeks....that's what brought me here...not sure what the problem is.