Hi
New day new problem 🥴
As you already know from my previous threads, I have problem with air intrusion (next week I will replace return lines), as well as problem with vacuum in fuel filter ('fuel filter' light lite, when I press schrader valve, engine goes off), today I crank the engine and of course need too much time to get white smoke and finally engine was running.
I drove it for about 10-15 minutes and power off the engine.
Crank it again, start imideatly... Few times like that, and was ok.
I rest for about 1hour, twist the key at ON position and 'Amp' light comes on the dash.
What is happening now, any idea?
Also try to start the engine, cranking but without success.
I have new batteries with enough CCA.

 

The amp light always comes on with the key-on engine-off. It means your alternator isn't charging the battery, which is correct if the engine is off.
It has nothing to do with your no-start condition.

 

Thanks.
I am hoping that will resolve my previous problem (fuel filter light, vacuum in the filter).
I really like the van...

 

Replace your engine driving fuel pump. Buy a Motorcraft/ford/international brand.

 

that will be next phase, if needed. first to replace return line, and then will check fuel pressure. If needed i will replace LP.
I am doing everything alone, and I don't have any knowledge about this vehicle, I am not mechanic. replacing LP will be chalenge