lethal6
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Left my lights on today @ work. 9 hours later, I go to leave and it is dead as a door nail. I jumped it and let it run while I locked up the shop and then drove home (12-14 minute drive home).
I noticed on the drive home my volt gauge was sitting at a hair above 12v while at a stop light and then it would go up to 14v when I was accelerating but then would drop back to around 12 when cruising at 35. It bounced back and forth the whole way home. It normal sits at 14v the whole time.
I also noticed that there was terrible alternator whine through the speakers (normally only does it when the lights are on). I have a bad ground loop that I haven't completely located yet but it hasn't done it during the day until today.
When I got home I left it idling and put the multimeter to it [battery] and it read 13.3v, pretty steadily.
It's supposed to be 14.4v @ idle isn't it?
I noticed on the drive home my volt gauge was sitting at a hair above 12v while at a stop light and then it would go up to 14v when I was accelerating but then would drop back to around 12 when cruising at 35. It bounced back and forth the whole way home. It normal sits at 14v the whole time.
I also noticed that there was terrible alternator whine through the speakers (normally only does it when the lights are on). I have a bad ground loop that I haven't completely located yet but it hasn't done it during the day until today.
When I got home I left it idling and put the multimeter to it [battery] and it read 13.3v, pretty steadily.
It's supposed to be 14.4v @ idle isn't it?