My 2004 astro van staled affter ideling for 15 min. and will not start

otad doesn't help ---did the trans come out of an 05 astro van s-10 blazer /jimmy s-15 or safari and it your awd because you need to match the rwd with an rwd and a awd with an awd /4wd from above and the unit has to be compatible with the 05

Could be low fuel pressure. Should be 50psi min.

Could be crankshaft sensor.

check your EGR valve. The diagram can be found at autozone.com. become a member and you get all the tutorials you could ever want for free!

Look for vac hoses damaged or dislodged. System is designed to fail in defrost mode.

you need to replace the gasket for the throttle body fuel injerction or you have a vaccume leak.

How do you know the fuel pump is good? And I would not keep using starting fluid to try and start the vehicle. Did you check fuel pressure? Did you try to dump a little fuel down the carb then try starting?

Try cleaning the trotle body at the butterfly,they tend to carbon up and not let proper air mixture at idle,tailtail sign some times is feels like the throtle pedal sticks or pops when depressing it.

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the relay is prob burnt out causing it to short in the on position it will prob. require a pigtail and relay as it might be melted together. I got the last one I needed off a junk car and it was cheap

if your mini van has a 4.3 litre engine v6, when you turn the key on you should be able to hear the electric fuel pump start. the fuel pump is inside the gas tank,if you hear the pump you might want to change the fuel filter. The thing about computerized engines and a throttlebody is that you need a fully charged battery to start work with.