Engine shut off while driving now it cranks but does not start

Get some starting fluid. Spray a decent amount of it into the intake air tube. Put the tube back into place and crank the engine. If it starts and shuts off, then your problem has to be a fuel delivery issue of some sort. If it will not crank at all, try again, but with more fluid. If it still will not fire up, then it is a spark problem of some sort.

On second thought, a sweet burnt smell, combined with the orange fluid that you saw, could be antifreeze. They use an orange antifreeze in many of today's cars. Check your coolant level. And check your oil too. If the oil is milky looking, then your car seriously overheated, a head gasket blew, and started leaking into the oil. Eventually some got into the cylinders and flooded the spark plugs, keeping them from firing.

Let us know what you come up with and we'll go from there.

I could see that happening actually, except the part about it shutting the engine down. Go ahead and pull that thermostat and check it. If you cannot open it manually, or if it is bent, or it is just ridiculously hard to open, then it is likely what caused the overheating. If the car was severely overheated, the engine parts could have swelled up so much that they could not slide by each other, causing the engine to shut off. Serious damage would have been done, probably requiring new heads, gaskets, and the like.

I would go ahead with pulling the thermostat and replacing it. Even if it was not the cause of the problem, it is probably bad now anyways. Then I would refill the cooling system, spray some starting fluid down the intake, and turn the key to see what happens.