My Dodge Caravan 1998, was running good, i parked the van for 25 minutes, When came back, don't wanted start. I already change the gas pump, the battery, crank sensor, spark plugs... What can i do now?

You need to do some analysis. An engine requires fuel and compression to start and run. If there is no compression, the sound of the cranking is very different. Since you did not mention that, I suspect that is not an issue.

Smell the exhaust pipe, then crank for a while. Smell the exhaust pipe again to see if there is a gasoline smell. (Don't put your head near the exhaust while cranking; if the engine happens to light off, or even if it just gets a little flame into the exhaust, you can be injured by the exhaust.)

If there is no increase in gasoline smell, you probably are not getting and fuel to the engine. You can try, in that case, spraying some starting fluid into the intake to see if that cause the engine to start briefly. If it does, you know for sure that the mechanical and the electrical aspects of the engine are functioning.

Pull a park plug out of the engine, put the plug back into the boot at the end of the plug wire, lay it on the metal of the engine. Then have one person crank the engine, and check to see if there is a stout spark in the gap of that plug. If not, you have an ignition problem: Bad coil, connection has fallen off the coil, bad ignition switch, etc.

One thing that can cause this kind of abrupt, complete failure is for the timing belt to break. If your engine has a timing belt, visually establish that it is going around with the engine.