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possible alternator issue

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Old 10-04-2013 | 12:27 PM
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Daven75
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Default possible alternator issue
My volt gauge just shot all the way up to 19 three tines and I got the check gauges light. All ground wires are pretty good. Any ideas?
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Old 10-04-2013 | 12:57 PM
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From: Salt Lake City, UT
Year: 1998
Model: Cherokee (XJ)
Engine: 4.0
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I've heard that when an alternator fails it often overproduces on the Voltage. You can have your alt checked at just about any parts place for free. I believe without even having to remove the alt.
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Old 10-04-2013 | 01:38 PM
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From: +34° 25' 35.67", -81° 21' 12.04"
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I'd start by checking the voltage at the battery with a voltmeter before you go any farther...
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Old 10-04-2013 | 01:52 PM
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From: Broward County Fl.
Year: 1989 xj sport 2dr
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What year ?
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Old 10-04-2013 | 02:02 PM
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Its a 2000. Just had the alternator checked at advanced auto parts and it passed. Battery was also fine
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Old 10-04-2013 | 02:04 PM
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Year: 1989 xj sport 2dr
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Originally Posted by Daven75
Its a 2000. Just had the alternator checked at advanced auto parts and it passed. Battery was also fine
Voltage is regulated thru computer not alternator.
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Old 10-04-2013 | 02:16 PM
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From: Broward County Fl.
Year: 1989 xj sport 2dr
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Ive read the battery temp sensor could cause over charging id have codes read .http://www.justanswer.com/jeep/2odqn...ght-comes.html
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Old 10-04-2013 | 02:21 PM
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Year: 1990
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Originally Posted by freegdr
Voltage is regulated thru computer not alternator.
X2

I believe you can install an external regulator. Ive heard of this being done, im just not sure what it all requires.
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