Battery and Brake Light On
2005 Nissan Murano. I have been having electrical problems for five months. The first instance was when my girlfriend was driving the car, classic power failure where she lost all power (terrifying). It was outside my neighborhood. Mechanic in that neighborhood said that it was the belt. He replaced it. He said the alternator was fine. About a week later, car wouldn't start. No power in the car (lights, radio) I figured the battery got fried in the process of the last failure, replaced the battery. Fine for a week, then car wouldn't start. Took the car to pep boys, had them look at it. They said everything was fine, they did put a new post on and tightened everything up. Then the car wouldn't start a week later, no power in the car. Had the car towed. During the tow, tow truck driver couldn't turn the car with a battery pack connected to battery. Pep Boys (don't really like these guys anymore, sorry Pep Boys), said the starter was bad (possible since we couldn't turn it over with alternate power source), had the battery replaced again. No mention that alternator was bad.
Well girlfriend drives car, car loses all power. IO.K. so you're screaming alternator) Went to my local mechanic this time, he replaced the alternator. Driving the car home, the car tends to hesitate slowing down to a stop, like it wants to die. I can hear and feel a vibration from the engine like something is having trouble fully engaging. Seems to improve though as I drive on. Car is dead the next day. Mechanic comes over jumps it with a battery pack. He takes a look at it. It's starting fine at the shop. Computer says its fine. I pick it up, drive off, same hesitation problem, this time I lose all car power(not electrical inside) and can start it back up, drive it back to the shop. Mechanic says its the cam sensor, replaces it. He drives it four miles. I drive it about four miles fine from the garage without anymore more hesitating. But two days later, today, girlfriend tells me battery brake light came on and went off a minute later.
So, from what I gather, the obvious problem is the alternator. That's what the light indicators say. But, as you can see from the lengthy post, I'm wondering if it can be anything else. I'm going to have my mechanic look at it immediately for alternator problems, ask to replace it again (hopefully no cost) but since I'm ready to tear my hair out, wondering if anyone had insight on other potential problems.