i have a 94 4runner, 3.6L v6 automatic. it will start and run fine but while I'm driving or sometimes slowing down to stop it will stall without warning. all the electrical stays running, i just lose power immediately, and it will not start back up. if i leave it for say 30 min after this happens it will start without a problem and run fine for a little longer until it dies again. I can not drive my truck for more than a day without this happening, i did change my oil and added coolant and it ran perfectly for a week, and now it doing it again. Any suggestions?

 

I would say check the negative/positive battery cables. Also test the alternator, do a good check around the area for corrosion and get back to us.