Towed the car back to NJ.
Yesterday, inspected the car engine area in detailed and notice there is a small leak of oil, from left side of engine from back side of head gasket.
There are no other codes or issue with the car. each time when I replaced the alternator (2 times already in 3 weeks) after the replacement all test is been performed and everything is working fine.
Any help from all of experts out there is appreciated.
Small world Dax I have a sister in Bloomfield, I was raised in Bayonne.
For the most part oil should be nonconductive, why it is used in electrical equipment. But if enough foreign particles such as carbon or metal particles are present it can become conductive. Use a spray electrical contact cleaner put some cardboard down and clean off the oil soaked wire.
Just to clarify you changed the head gasket or was it the valve cover gasket? The first more likely to leak anti freeze, the later oil. Also you made it sound like it was quick and no big thing which would be a valve cover gasket while a head gasket is a major undertaking.
But I have had bad rebuilt alternators. My daughters mazda, old alt was bad, putting out 8 volts. Replaced it, a week later the new was putting out 18volts, weird things were happening. So replaced it. no problem since. It was the regulator, but it and the alt were all in one.
Is yours in 2 parts? In other words a separate alt and replaceable regulator? If so you may need to change the regulator. I ask because you state the bad alt has a good regulator.
Of course check all connections clean the battery collections. I have heard of batteries shorting out internally, though rare.