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Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
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| | | | Joined: Nov 2007 Posts: 190 Shop Shark | | Shop Shark Joined: Nov 2007 Posts: 190 | Open diode would be my guess as well. Do you know if your running a 10DN externally regulated Delco alternator or possible an internally regulated 10SI Delco? Your best bet would be eliminate the alternator and take it and have it checked. If your running a Delco just one of the 6 diodes bad will let it drain back and run the battery down.
Ken | | |
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