1979 GMC

  • 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?

Do you
have the same problem?
Wednesday, November 12th, 2008 AT 4:46 PM

1 Reply

  • Tiny
  • hmac300
  • Expert
  • 44,798 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.

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

Please login or register to post a reply.

Similar Questions