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Old 08-28-2012, 06:59 PM   #1
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alternator or ???

A buddy of mine bought a 98 Wrangler SE yesterday. This morning, when he left work, he pulled the headlight knob on and it died. Went to the parts house and replaced the battery and all good till about a mile down the road. Amp meter dropped to 0 and died again. It cranked back and ran till he got home(about 2 miles). Would this be the alternator or something else? Any help would be greatly appreciated!
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Old 08-28-2012, 10:27 PM   #2
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It could be the alt but with new fully charged batt I doubt it would die a mile down the road.Test the charging voltage with a multimeter it should be in the high 13's mid 14's jeep running. Turn everything on (lights, radio, wiper, fan) the votage will drop but should come back up within that range. Or bring it to chinazone and they'll check it for free with their little handheld scanner charging system checker thing.

Is it throwing any codes?

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Old 08-29-2012, 07:47 AM   #3
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Make sure he tightened/clean the battery /alt connections before he put a voltmeter to it. I would also trace the wire from alt to battery for fraying/kinking.
x1 on it dying that soon from a bad alternator. A dead battery/alternator would probably won't restart either. So does it dies only when he turns the lights on? Ok otheriwse?
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