Definition:
A transformer in the ignition circuit that steps up the voltage provided to the spark plugs. Related Resources:
Troubleshooting No-Start Problems Ignition Coils
The Ignition System
Here I discuss how the engine produces the spark and how it does it at the proper time.
Key won't turn? It's raining and your car won't start? This will give you some possible reasons why.
How to inspect, test and replace the ignition coil in your car.
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