So my son called me Thursday night and he had the wife's Elantra out to visit a friend. Car has about 30K miles, sits alot. Original battery. While he was driving, after having started it twice that night, he lost all power. He's not sure which lights did what on the display, he was trying to get off of the road safely. Auto transmission. He got into a driveway and called. I bought a new battery and went to get him and we installed the battery. Started right up and we drive home about 30 miles. Now the battery reads 11.49 volts (11.78 yesterday before I started it.) At the battery when running read at 11.78 volts. With the car off 0 ohms between negative post and alternator body. With power on but not running 9.48 volts at power lead at alternator. Should this 9.48 volts be higher?
Do you think it's safe to assume the car needs an alternator?
Do you think it's safe to assume the car needs an alternator?