Question about 1988 Jeep Cherokee

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Alternator is dyin a lot

I have a story to tell so here it goes. I have a 87 jeep cherokee ladero. i am having problems with electrical problems that are basically KILLING my alternator. I had the battery replaced numerous of times and the alternator is a 160 amp alternator i bought with lifetime warranty on it. the alternator has been killed basically three times so far and the most recent was today. the symptoms are simple but kinda unexplainable. the first thing is that what ever it is it is killing the alternator very slowly each time. i never have a problem until i get about 3 or 4 months down the line. what it does is the voltage on the battery indicator with go in and out between 9 volts and right around 13 or 14 volts. once it drops to either 9 or below the machine will not charge at all. after about driving for about 15 mins the machine will start charging for about 10 mins and then go back down again. it will go throught this process for about a month and then will completely kill the alternator. the only fix that i have come up with so for is to replace the alternator. after a replace the alternator everthing is fine for a few months and then the cycle starts all over again. what could directly be killing the alternator but at that slow of a rate???????/

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What engine do you have? Where did you buy the alternator? I want to help you but need more info. Get back to me OK. John

Posted on Dec 25, 2008

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Posted on Jan 02, 2017

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