Voltage reads 18 and kept climbing turned a corner it stalled. Drove. It to work came out. No power at all. Is it the alternator? Battery is 06/15.
2 Answers
If it's overcharging then you alternator is bad. It has an internal regulator that keeps it at about 14v. 18 is way too much and hopefully no other damage was done. There is a good possibility, check all fuses. But you will need a new alternator
As Andrew says, 18 volts is way too much and the alternator is the likely suspect. If it has been doing this for some time I would also have the battery checked out. 18 volts going into a 12 volt battery will boil the electrolyte and ruin the battery.
