hi, i have a 96 neon with 123,000 on it. last night aroundf 11 i went to start it for work. it starts, i go inside to let it warm up. come back 10 minutes later to wipe snow off car. its not running. lights are on but not engine. turn it over it starts after a few crank( cold here in mn) and i start clearing off snow and it dies again. i try again and it just cranks, wont turn over. so i end upo walking to work (1 mile) and two hrs later i get home after a buddy went to walmart and i tagged along and it starts no problem. any ideas? there is a slight drop in rpms every 5-10 seconds. idk wat it is. car had a miss before so maybe its back. maybe snow got sucked in?