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hi there,

i've had an 88 jeep for about two years now. it came with 150,000 or so miles on it, and i've put another 40,000 or so on it in the past 2.5 years. according to the jeep's previous owner (she's a good friend) the cars had about eight alternators so far, and it looks like i'm about to replace it again.

i know that a bad battery kills the alternator, so i've been good about having it tested periodically (autozone does this for free). about a month ago i noticed the battery gage looked a little low, took it in to be tested, and wound up replacing it with a used battery. the gage is still low, however, even with the new battery. the alternator itself tests fine (they also do this for free at autozone), and the car doesn't stall when i disconnect the negative terminal, but my battery gage is at 12 (should be at 14) and drops into the red if i turn on the heat or defroster.

any suggestions on why my alternator keeps conking out? and how i can fix this once and for all.

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