1995 Ford F-150

I ask you a question the other day about my F150 and you replyed now Im replying back 2 u. The smoke that is coming out of my truck is a grayish blue color. Now I have another. When I went out to crank my truck 2day it crunk up but then cut right back off and when I turned my ignition switch again I got power but the truck want turn over at all. Its like im just turning the ignition switch and nothing is happening. Its like Im not getting any fire. Thank u for your time. Nick sharp