I have a 2000 plymouth carvan 64,000 miles. I tried to start it & it wouldn't turnover. Tried a few minutes later and it turned over and started. Rolled down my window; (have power windows) went to roll it back; van turned off. Lost power to everything. No power steering, radio. Wouldn't start. Now, it starts every once in awhile. When it won't start, no electric parts will work. Ie. Radio, dome lights. What do you think the problem is?
It sounds like you lose all power so start at the battery. Corroded cable connections could be the problem and all you might need is a good cleaning of the battery terminals and the connections. It's cheap and easy and well worth the effort to try.