My blazer

Asked by Feb 12, 2019 at 10:16 PM about the 1986 Chevrolet S-10 Blazer

Question type: Maintenance & Repair

So my 86 s10 blazer was running after i replaced the coil
pack spark plug and wires started no problem had it
running and the coil pack fryed ive replaced the coil pack
again and same thing idk what my issue is?

2 Answers


Are you using OE coils? It's hard to fry a coil they do that all by themselves if they're not insulated correctly, Chinese stuff does that often.


Check your voltage at the ignition coil with the engine running. It should be around 6 to 8 volts DC. If it's 12 or more volts, there's your problem. Hope that helps! Jim

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