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SN-95 and New Edge Mustangs
Battery warning light
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<blockquote data-quote="StrayBullitt" data-source="post: 15593325" data-attributes="member: 181759"><p>Can pretty much guarantee it's your alternator is going out. Buy a cheap volt meter from auto parts store and put it to the battery with the Engine running, if you are not getting around 13.5-13.8ish volts then your alternator is not fully charging.</p><p></p><p>I don't know what the threshold is for a fail according to the test equipment, but since the light is going on and off, you have an intermittent issue. Best thing to do would be to check voltage output with a voltmeter at the battery whenever your battery light is on while the Engine is running.</p></blockquote><p></p>
[QUOTE="StrayBullitt, post: 15593325, member: 181759"] Can pretty much guarantee it's your alternator is going out. Buy a cheap volt meter from auto parts store and put it to the battery with the Engine running, if you are not getting around 13.5-13.8ish volts then your alternator is not fully charging. I don't know what the threshold is for a fail according to the test equipment, but since the light is going on and off, you have an intermittent issue. Best thing to do would be to check voltage output with a voltmeter at the battery whenever your battery light is on while the Engine is running. [/QUOTE]
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Battery warning light
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