60 gmc charging issues - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**AngryPirate** · 10-22-2016, 07:05 PM

So, I've replaced the battery with an exide agm, had the generator rebuilt and replaced the starter.

If I charge the battery up with a charger, it will start.

If I boost it from another vehicle, it will start.

If I drive it for a while, it doesn't have enough juice to turn over the 305 v6.

Thoughts?

I want to say it's the external voltage regulator, but I'm not sure how to test that theory.

Thanks for any tips or ideas!

10-22-2016, 07:05 PM	#1
AngryPirate Senior Member Join Date: Jan 2012 Location: Austin, TX Posts: 564	60 gmc charging issues So, I've replaced the battery with an exide agm, had the generator rebuilt and replaced the starter. If I charge the battery up with a charger, it will start. If I boost it from another vehicle, it will start. If I drive it for a while, it doesn't have enough juice to turn over the 305 v6. Thoughts? I want to say it's the external voltage regulator, but I'm not sure how to test that theory. Thanks for any tips or ideas!



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