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Won't start on rainy days

Will not start when damp or raining after sitting a day or so

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SOURCE: My olds 88 will not start on wet or rainy days.

put car in nuetral could b saftey switch and try to start if still clicking starter may b bad

Posted on Dec 20, 2008

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My Blazer cranks over and over...killed the battery : ...next morning the second time I tried cranking it over it made a poof sound and started but with a lot of chugging. Can anybody help please?


Lynda, If it is the 4.3 V6, they are prone to getting moisture in distributor which causes the symptoms you are talking about including the poof. You can have scanned to see if trouble codes are stored, you may get multiple misfire.
If continues doing this have cap and rotor replaced and if wires and plugs are old do them to. Check the attached links,instruction and guides, Good luck
"I hope this helped you out, if so let me know by pressing the helpful button. Check out some of my other posts if you need more tips and info."

Truck will not start when raining or very humid Chevrolet Forum Chevy...

Astro won start or very hard to start when damp or rain

http://www.gmfullsize.com/threads/4-3-vortec-cranks-but-wont-start-in-the-cold-or-wet.269195

V6 vortec 4 3 has hard time starting on humid rainy days Ask the GM...

Apr 01, 2016 | 2001 Chevrolet Blazer

1 Answer

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 ...

www.topix.com > 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 ...

chevroletforum.com > ... > 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

2000 gmc safari parked in the rain won't start


Did you take the distributor cap off and see if it has moisture inside ?

Apr 14, 2013 | 2000 GMC Safari

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1999 Chevy astro van won't start


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.

May 04, 2012 | 1999 Chevrolet Astro

2 Answers

Everytime it rains real hard. car won't start, after 2 days it then starts.. Everything works good..........Then a month later when it rains again, the car won't start for another 2...


Obviously water is the cause. Make sure all hood seals and underbody splash shields are in place, check firewall main connector for security. After it rains (without driving it in rain) check floor mats inside for water. A possible windshield or dash leak is allowing water into electrical area near instrument cluster (windshield may need resealed). Lift hood and look for water on any electrical connections disconnect dry, and seal with tune up grease from parts store.
Good luck

Aug 24, 2011 | BMW 330 Cars & Trucks

1 Answer

Every time it rains hard my car will turn over but wont start


You need a can of wire dryer and WD40.

I have the same problem on the same car.
I replaced the spark plugs, wires, distributor cap and when it's damp and wet my car would not start. sometimes if i try for 20 minutes it may kick in but doing so after a few rainy days i blew my starter. Now I just spray my wires and cap with the wire dryer and WD40 before it rains. And if it doesn't start and it's wet outside, use the wire dryer. I heard some people used some shroud to cover their cap, but i don't know what they used as it's close to the engine and I didn't want something melting.

Apr 24, 2011 | 1998 Volkswagen Jetta

2 Answers

My 1994 jeep sport 4l won't start it won't start for the first time when I washed it at the car was washed under neath and under hud, left it runnung, then shut it of and it would'nt start. next day it...


You should never wash your engine. It can really mess with the computer sensors. However since you now have a problem in the rain, I'd change the wires, cap and rotor. (likely old and sensitive to humidity) Also, look at your ignition coil in the dark...if you see any spark or electrical "haze" where the coil wire goes in, change the coil.

Jun 12, 2009 | 1994 Jeep Cherokee Country

1 Answer

1997 Jetta 4 Doors Won't Start on rainy, wet and cold days


Damp is getting into your electrics. Spray all wires and disributor with WD40 after wet days or nights before trying to start it. That should cure it

Mar 30, 2009 | 1997 Volkswagen Jetta

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