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so today i stop at autozone to buy little mirrors for the Acura to help me see my blind spots. have my wife and kid in the car and when i come out she said all the lights on the dash were flashing and the car died. i tested the battery and figured the alternator was the culprit. i can understand the original Acura battery from the factory going bad, i am actually impressed that it lasted so long. I am not impressed that the alternator went out on the car already though. its an 07 with 70,000 miles. i tested the alternator after installing the battery and it was putting out 8V. needless to say 260 dollars later and 2 hours the acura is charging 14.2v.

not how i wanted to spend my sunday hung over..... anyone else's alternator go out this early?
 

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Yep. Mine went @60k-ish. But I also am really hard on alternators :devil:


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Mine just went out at ~83k miles. Now I have trouble regulating the idol rpm it fluctuates between 400-700 rpms and rumbles and then eventually levels out at 600-700 rpm. have you experienced this issue?
Since you disconnected the battery, the ecu has to relearn the car. Without driving!! Warm the engine until it is at normal operating temp. Then, allow the car to idle on its own for around 5 minutes or so to let the computer gather input data etc. if the car has already been driven, disconnect the battery for little while, reconnect and do the relearn procedure. Hope this helps

Personally, I think that over time with driving and normal conditions, the ecu will "get it" and eventually reach all of its operating parameters but this exercise helps it get there quicker, especially if a service center works on it.
 

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Just a heads up. If your alternator dies, a far better option to buying a new OEM one is to get it rewound. There are many places that do this.

Benefit is that you can get it wound to a higher voltage output and an uprated stator included will mean it will charge your battery from lower revs.

It will probably outlive the car.

It's usually cheaper than buying a new one.
 
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