Hard start have hard time starting 97 chevy van takes about 10-15 tries. after first start of day no problem, trouble started shortly after tune-up have fuel pressure reading of 51-55,have replaced battery,fuel filter,fuel pressure regulator, can hear pump when you turn key Fuel Pump was replaced 2 yrs ago,someone mentioned the (ECT)

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 ...

Depending on what the trouble code is, the problem could be the cam instead of the sensor.

you don`t say but it sounds like the moisture from the rain is sitting on the plug wires causing them to short the voltage to ground and possibly moisture in the distributor cap.how long has it been since a tune-up was done to the van.

You could try cycling the key several times before you crank/start it. If that helps, check your fuel system.
Also, check and clean anything to do with idle air system.
How long since a tune-up? Any applicable trouble codes?

Shifting hard goes to line pressure. Check the filter you put in. There's a short version and a long version. If you have the long version in there, it will bottom out in the pan. Do not change the solenoids because it already shifts differently after changing the filter.

crank shaft sen. is easy enough to change.its mounted near timing chain cover,cam sen.is somewhat harder,its in the distributor,id doubt that both are defect

hoorn take the wire off hook another horn up see if it is the horn itself if not it is the horn relay or the horn button

when was the last time it had a tune up? cap, rotor plugs, wires, small crack in cap will cause this.

these vans where kind off know for haveing problems with there dist. check the dist cap for cracks, check the coil wire also. what has happened is that mosture is getting in some where and probley the cap is at fault. when s the last time the vech has had a decent tune/up cap rotor plugs wires . replace the cap and rotor and coil wire, should solve your problem . but i would recommend looking at the other tune /up parts good luck kdc744

My 1997 safari was doing the same. After being shut off for a short period of time it started as if it was flooded. If I put the accelerator to the floor it would fire up. As well, I had no engine codes to report. I replaced the fuel pressure regulator and everything is great. It was leaking fuel into the engine causing it to act flooded when starting. Once started, the computer system made adjustments for the leaking fuel so the engine ran fine. If you turn the van off and immediately try to start it, it should fire up. (don't give it time to leak extra fuel into the engine)