Car wouldn't start after sitting for 9 days, jumped it and the voltage was low, like in the 12s. After work the battery was at 11.3 but it started. Cheap AZ battery was 5 years old so I got a brand new one, but my voltage never goes past 13.3V now.
Yes I know the 04+ only "charge on demand" but I recall it rarely being in the 13s and almost always in the 15s at night with the headlights etc going.
I checked the battery frame ground, it's good. Does the alternator just ground through it's case with the brace that goes to the engine?
Anything else I should check before buying a new alternator?
