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2014 Chevy Silverado
Platform: Truck, GMT 400, 800, & 900

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Old 11-17-2008, 11:07 PM
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Join Date: Nov 2008
Posts: 1
Default P1351 IC Circuit High Volts, 2000 4.3 1500

Looking for a diagramor description of the ignition system fora 2000, 1500, 4.3L, 2WD truck. It stalled while driving and now has no spark. I am told the high volts code means there is an open. I replaced some parts (plugs, dist. cap/rotor, coil) and still no spark. The engine turns over and gas is getting to the plugs.I checked the fuses that I could(how do you test the big grey square ones?).Before I go buy an ignition module I would like to know what else could be wrong.Need help todo that. I don't know what other parts the system has (sensors?).

Any help would be really appreciated.

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