Question about 1996 Chevrolet Astro

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My 1998 Astro is having problems starting after a heavy rain of when the weather is extreemly damp. We have replaced dist. Dist cap & rotor, wires, plugs and coil. The problem still exhist, seems as far as we can denote the injectors are not priming when its wet, the fuel pressure is good at 59-66 staying at 61 when the van does start.

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  • justicer Oct 13, 2008

    I am having the same problem with my 1999 Astro, after vehicle is not started for a day or two or is damp it will not start. I changed Dist cap and roter, sparkplugs and wires, fuel filter, the IAT and MAF sensors. can you help with this one?





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I had same issue on '93 astro. On mine however, it still wouldn't start with the new distributor cap, so I siliconed around it which I think filled a few small gaps in the autozone china made pos and it worked fine ever since.

Posted on May 17, 2012



Posted on Oct 23, 2008


Thank Yoy greasedog.
That is one road I or they haven't been on yet?

Thanks for the tip

Posted on Aug 31, 2008

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Try checking the crankshaft positioning sensor, it may be getting water in the connector causing it to short out and give false readings

Posted on Aug 25, 2008

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Will not start when its damp out. when not damp starts right away thank u mike

Astro won't start or very hard to start when damp or rain ... > Chevrolet Astro
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 ... > ... > Past Chevy Truck, SUV & Vans > Astro
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 ...

Jan 18, 2016 | 1987 Chevrolet Astro Cargo

1 Answer

I have a 1998 VW Golf. I have noticed that when it rains or when the car does not start. I have replaced spark plugs, wires, distributor cap, starter, battery, its been tuned, oil change. It still does...

You didn't mention distributor rotor. This part should be replaced with the dist. cap. If moisture in the ingnition circuit is the problem, try spraying entire ingnition system with WD40. This will waterproof wires cap coil and distributor.

Feb 09, 2011 | 1998 Volkswagen Golf

1 Answer

Talked to you before. AStro van still wont start when it is damp or humid/raining outside. Mechanice has looked at it many times with no resolve. New dist. cap, rotor, coil is fine new plugs, fuel...

A real mechanic can not find the problem, and he has put his hands on it, so you are now consulting a crystal ball. I think I said before old plug wires are the most frequent cause of wet weather starting problems, you seem to have replaced everything but those. Perhaps if you had replaced those instead of everything else your problem would have been solved? I would take it to a dealer garage and ask them if they have encountered this before. It may be something they see daily and fix for less than 50 bucks.

Dec 21, 2010 | Chevrolet Astro Cars & Trucks

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Check your catalitic converter, you might start with an oxygen sensor first. your local muffler shop can do a temp check on the converter for you, but you can replace the oxgen sensor your self pretty easy.

Jun 11, 2009 | 1998 Chevrolet Astro

1 Answer

1998 astro van dosent run

The distributor cap probably needs replacing. They are notorious for failing just by their design. Problem is the dealers no longer carry them so you will get an after market unit from a local auto parts dealer. Make sure it has a life time replacement as the after market units fail more often than your original GM part

Mar 22, 2009 | 1996 Chevrolet Astro

2 Answers

2000 astro van running bad

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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Jan 03, 2009 | 1998 Chevrolet Astro

1 Answer

1989 Chevy Astro Van CL will not start if it has rained hard

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

Dec 24, 2008 | 1989 Chevrolet Astro Cargo

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