Spark Plug & Ignition System Basics - Night School
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A primary wire must be intact and have no load resistance. This late-'50s Chevrolet wire shows high resistance, which would overheat the coil and this wire. Ignition misfire, poor starting, and cutting out under load would be likely symptoms for this primary wire to the coil. The best testing device is a digital volt-ohmmeter. Check circuits for continuity and ohms resistance. View Related Article
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