Tagged ballast resistor

Under the Bonnet – Fall 1990

Welcome to Under the Bonnet, our quarterly technical column dealing with the basic maintenance and repair of your British car. We’ll be covering topics here that have been the cause of recurrent problems and questions by customers as well as our own staff members. While much of this information may be rudimentary to old-time mechanics,…

Troubleshooting

Ballast Resistor The purpose of the ballast resistor is to reduce voltage going to the coil. Not all cars have a ballast resistor. If your coil has three wires connected to it, chances are that one of them is for a ballast resistor. If the ballast resistor is bad, the car may start but die…

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