1997 Chevy Astro Van Help????

I own a Astro Van with 77,777 miles on it and when there is just a little moisture in the air or a light dusting of snow, it starts to act up. It acts
as if the engine is missing or the transmission is slipping. When it warms up it all quits. When it does act up the Service Engine Soon light comes on. And then goes out when it starts to run right again. When I have it checked all the codes say is it is missing on one or more cylinders. It is very confusing to me, it only happens when it is cold and moist outside. Does anyone out there have the same problem or have had the same problem. What did you do to correct it? Please let me know, thank you
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload
Sounds like you need to have the plug wires checked, or a bad plug. I had the same issue with a 2000 Impala and found it was a bad plug wire. Good luck

acts
on.
checked
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload

Motorsforum.com is a website by car enthusiasts for car enthusiasts. It is not affiliated with any of the car or spare part manufacturers or car dealers discussed here. All logos and trade names are the property of their respective owners.