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  • 1 Post By 1970 f250

Thread: 428 electrical
          
   
   

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  1. #6
    jerry clayton's Avatar
    jerry clayton is offline CHR Member Visit my Photo Gallery
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    Feb 2006
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    The ballast resistor (you do still have points ignition?) is usually mounted on the firewall but since your truck is 44 years old, it could of been moved----trace wires from the coil (mounted on front of engine near dist?) towards the ignition switch----------the deal is that the truck will start running on 12 volts but as the resistor gets warm it will reduce the run volts to aprox 6 volts to help the life of the points---------




    After some recollecting?? your truck might have a resistor wire to the coil instead of a ballast ---------
    Last edited by jerry clayton; 12-01-2013 at 07:49 PM.

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