oh no what happened.... i stopped and washed truck washed under the hood to get rid of dirty and see where oil leak is from ...drove home and it startesd to sputter , poor power and shake...slowed down to turn corner and it stalled ...started again ....then slowed and it died.....got out and checked antifreeze resevoir is over full.....tried to start again and when it did( some cranking) there was terrible white blue smoke that came out of exhaust......quite a bit also.....had to keep it reved so could so would stay running... HELP!!!!!! what happened??