suburban woes

I drove my Suburban to and from work(6 ml.) and then got back in it about 2 hours later and it won't start. The starter turns the engine over, but it just won't go. Any suggestions? I just don't understand what could make it go from fine one minute to crap the next. thanks for the help!

Frustrated jamman

Could be a number of things...first I would check spark and fuel pressure.

Thanks for the help!

I looked carefully and thought about how this happened out of the blue.
I decided to stick with your suggestion about electrical because it was like someone just cut my power. Anyway, it turned out to be a corroded coil wire that simply broke apart.........THAT'LL DO IT!

JM