Question about GMC Sierra 3500
I supose that you are getting a spark at the spark plugs when the engine is cold or no.???
Have you checked the distributor cap and spark wires?
Finally do you mean to say that you have changed the ignition module ? that's that black/grey rectangular like unit that held down by two screws.
Posted on Feb 03, 2010
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Posted on Jan 02, 2017
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