1979 Other GMC Models

Tiny
DAN C
  • 1979 GMC

Electrical problem
1979 Other GMC Models 4 cyl

Why is a resistor needed or not needed on an ignition system?

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Wednesday, November 12th, 2008 AT 4:46 PM

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Tiny
HMAC300
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  • 47,000 POSTS

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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Saturday, October 10th, 2009 AT 9:26 AM

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