Timeline for Alternator intermittently outputs 12.6V
Current License: CC BY-SA 4.0
6 events
| when toggle format | what | by | license | comment | |
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| Oct 1, 2019 at 19:36 | comment | added | mongo | Good that you can capture on the phone, and hopefully your shop will pursue. Some will do better than others. It helps to have a good shop. Good luck, and tell us what you find. | |
| Oct 1, 2019 at 18:14 | comment | added | imhec3c | I've been keeping the loading to minimum when I tested the voltage fluctuation, even with the A/C and headlight turned off. So, I think that should rule out the large intermittent load. This morning when I drove the car for about half an hour, I didn't see the issue. On the other hand, in a short 10min drive yesterday afternoon, I did seen the issues and I recorded that in my phone. Can't find the condition to replicate that. | |
| Oct 1, 2019 at 17:39 | comment | added | mongo | Well, you could have a large intermittent load, which pulls down your alternator, and drains the battery momentarily. Something like all your seat heaters coming on at the same moment. Just like in medicine, intermittent car problems can challenge the observational abilities of the operators, their systems knowledge and their creativity. | |
| Oct 1, 2019 at 17:25 | comment | added | imhec3c | Thanks for the detailed explanation. I'll take a look at the wiring first for any apparent sign of improper connection or bad wiring. Unfortunately, this happens so random and I don't have a way to replicate the issue when I want. I did record the video that shows how the voltage reading toggling between 12.6V and ~14V. I hope this can be sufficient to prove the issue to the repair shop. | |
| Oct 1, 2019 at 17:12 | comment | added | DavidRecallsMonica | Very nice answer! | |
| Oct 1, 2019 at 15:23 | history | answered | mongo | CC BY-SA 4.0 |