The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - What would cause the 12gauge wire at the Junction box to ground?

RustyPile · 09-22-2019, 05:01 PM

SMOKE!!! Melted insulation!! That's a hard short that shouldn't be hard to see. Unwrap that area of the harness and take a look..

If that reveals nothing,my first guess (I hate guessing) is the voltage regulator contacts are stuck - shorting that red wire to ground.. Disconnect the Voltage regulator and, using a test light connected between a battery cable terminal and battery post, check again for the short..

09-22-2019, 05:01 PM	#4
RustyPile Registered User Join Date: Dec 2017 Location: Elkhart, Texas Posts: 1,538	Re: What would cause the 12gauge wire at the Junction box to ground? SMOKE!!! Melted insulation!! That's a hard short that shouldn't be hard to see. Unwrap that area of the harness and take a look.. If that reveals nothing,my first guess (I hate guessing) is the voltage regulator contacts are stuck - shorting that red wire to ground.. Disconnect the Voltage regulator and, using a test light connected between a battery cable terminal and battery post, check again for the short..