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Classic Truck Discussion Board

Re: 83 GMC coil hookup


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Posted by Bob on August 26, 2005 at 17:29:08 from (64.21.249.40):

In Reply to: 83 GMC coil hookup posted by Doug Golden on August 26, 2005 at 15:56:11:

They 2 dangling wires from the distribuotr likely would go the the coil.

I believe originally, it would have had an "E"-core square coil with a push-on connector, rather than a round-can coil with (+) and (-) terminals, which is what it sounds like you have.

When a coil has (+) and (-) terminals, generally the (-) terminal DOES NOT go to ground. It goes to the breaker points (if so equppied) on a (-) ground system, or to the electronic module (if so equipped).

If it is an electronic ignition system with ESC (electronic spark control), without a vacuum advance connister on the distributor and centrifugal advance weights, you will have no spark advance, leading to poor economy and lack of power without the "black box" ESC unit.


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