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International Automotive Technicians Network
Re: 1966 Plymouth Fury Sport (This is a good one for Albin)
Posted to Technical Discussion Forum on 8/12/2008

When cranking, the ignition switch will provide 12V to coil. When the ignition switch is in the run position, the switch will supply 12Volts to the Ballast resistor, the Ballast Resistor would then drop the voltage to 8.5 to 9 volts.

Also check the coil for ... Login to read more.