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A redesigned Pathfinder went on sale in late October 2012 as a 2013 model. Just like the second generation Pathfinder, it once again moved away from a body-on-frame, truck-based SUV and adopted a unibody design.

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2013 pathfinder alternator keeps dying over and over again

I have a 2013 pathfinder that just eats alternators it has ate 5 in my ownership so far I have used good Nissain full install for $1900, $3-400 dollar o'reilly alternator, now I’m just using ones from a salvage yard but they all last the same amount of time also it’s not the bearings that go bad (like from too tight serpentine belt) it’s the actual electricity go make make. I hooked my code reader up to it it was sitting at like 11.3-11.8 volts then it would spike up to the normal like 13.4-14.5 range then go back down please tell me why I’m done with this thing

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Hi @alexisjohn70113

As the ECM controls how the alternator functions perhaps get the OBDII port scanned to check if there are any error codes pertaining to the alternator or the ECM e.g. P2500, P2501, P2503, P0603.

Also check that the alternator has a good earth connection.

If you're in the USA then major spare parts retailers e.g. AutoZone, PepBoys, O'Reilley's do this for free apparently

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Only has codes for the exhaust and it has a good ground (I checked when probing around yesterday before I took it out)

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Hi @alexisjohn70113

Check if the battery current and temperature sensor is OK.

Here's an image taken from the service manual that may help.

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(click on image)

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It looks okay and no code from or related to it

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@alexisjohn70113

5 alternators indicates that something else it wrong as they all couldn't be faulty, you may have to look into how to test the ECM or check the wiring between the ECM and the alternator (or is it the IPDM?)

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Okay thank you

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