89 f350 7.3 idi non turbo
 

Trying to figure out a problem with my new truck that it got
I'll drive it down the road and come up to a stop sign and I'll put it on neutral and it stalls. I'm new to these trucks so I'm trying to figure out the problem. I'll try to start it back up but it just clicks and I'll have to jump it off for 15-20 minutes before I can get it to start again.

well if you haven't yet...replace the batteries or alternator. one or both should fix it...hopefully you got it cheap enough to fix things like this. most auto parts places can check alternators and batteries. Just beware, they are trying to sell you stuff.