1979 GMC Other Repair Question
Mileage: No information provided.
1979 Other GMC Models
1979 Other GMC Models 4 cyl
Why is a resistor needed or not needed on an ignition system?
if you have a points type system and some electronic ignitions if you don't have a resistor to cut the voltage down from 12 down to about 9 it will burn the points right up and damage some of the electronics in the electronic system. Not all electronic systems need resistors though.
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