I have a 1990 fulls size 302. Today I drove to the super market with no problems (starting or driving), parked, bought food, attempted to start the truck and it wouldn't start. At first I had power but as soon as it tried to turn over, I heard a light thud/click, and then no power (period). I checked my fuses under the dash-looked good. I left it alone for about 5 mins-got power, but no start. After that, no power again-ever. I had a buddy jump start it-power came on, but when I tried to crank it-the negative side of the jumper cable started to smoke-repeated attempts resulted with the same problem (bronco still didn't start). Has anyone ever had this problem; is something pulling too many amps? I assume it's either the battery, starter, or alternator (or all), but I live in Alaska (it's really cold) and I really would like to spend as little time as necessary outside troubleshooting. The whole jumper cable smoking issue is weird. Thank you for any help you can provide.