I have a 1999 Chevy astro van 4.3 it start but when you put it in gear and step on the gas it dies and it will Idle up the road find but don't push on the gas it dies

Astro won't start or very hard to start when damp or rain ...

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Aug 24, 2007 - Posted in the Chevrolet Astro Forum. Leave a ... 2000 astro, Hardstarting or wont start when wet, once started its fine. I replaced the cap, rotor, gas filter, next rain was hard to start but did after about 10 tries. ... I have a 2000 astrocargo van. 4.3 v6. ... look for a faulty coil. mine passed out in a rainy day.

Van won't start in wet weather - Chevrolet Forum - Chevy ...

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Sep 22, 2007 - I have a 1999 Astro Van and nearly everytime it rains or sometimes when I wash it, it will not start. ... I really like my ASTRO for everything from carrying family, boat, trailer, etc. but if it is not resolved its going before someone gets hurt. ...When it was damp out, the coil case would become wet, and the ...

check throttle body and check for codes

is it the car can't idle and when you step on gas pedal the die?

Had the same issue with our 1999 chevy astro van, would crank but would not start. It had been raining and windshield had a leak, after 2 days of no rain it started. Pulled codes and was the Security system in the ignition switch. Hope this helps.

Mom have u checked the ignitoin control module. These can cause a no start, Is the engine turning over and just not starting or is it not turning over at all.

The easiest solution to the misfire is to go down the line and eliminate the things you have fixed or not fixed to help eliminate what is causing your misfire, click on this link below to better help you understand what you need to look at to solve your problem.
http://www.obd-codes.com/p0300

time to buy a new van.. umm what about the alternator?

It is perfectly normal for the idle speed to increase with the AC on. This is done to ensure that adequate coolant flow is available for the increased strain the compressor puts on the engine.

If the idle increase is too high, there is a safety problem. There is an idle adjustment that can be made to reduce RPM to factory specification when the AC is on.

My 2000 Chevy express 2500 will not idle. When I come to a stop it dies. Starts back up a little flooded buy with RPM it smooths out but when I let off the gas it deis again??????

underneth the intake manold is were your fuel injector poppet nozzles are, more than likely the fuel line hose that goes thru the back of the intake is split and leaking fuel underneth the intake manifold if you check the fuel pressure you will find that the fuel pressure will drop down to 0 psi as soon as the fuel pump shuts off and it should hold pressure