1999 Chevrolet Blazer Q&A
1999 Chevrolet Blazer Question: How do you get rid of moisture in your Ignition Coil?
Every time it's wet, I run into this problem. My Blazer won't crank, or when it does crank, it won't catch. I know it has something to do with the ignition system because I had it looked at, but I don't know exactly what the problem is and neither does the guy I had it looked at by. - thelegitnerd
try dielectric grease and it will keep moisture out - globalhelper
Try a shop that works on autos. The no-crank symptom has nothing to do with the coil.The no-'catch' may have something to do with the coil if the no-start is due to no-spark. - ziptie12