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Old Aug 5th, 2004, 06:02 PM   #6 (permalink)
sentra97gxe
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Last time I had an alternator die it did things similar to what you said. The battery light would come on at low rpms and at high rpm's it would go away. After a while it got to the point where slowly it got worse as in I had to keep from running stuff that used power. As that happened I figured something out. The light will come on when the alternator is putting out below a certain point. So basically at higher rpm's its putting out more power however the car needs more power to run at higher rpm's and the extra juice from the alt at high rpms can't add up to the extra juice the car needs to run. So basically, keeping the rpms up will keep that annoying light off but will drain your battery to the point that you have no current left. Keeping the rpms down will leave you to deal with that annoying light but will leave you with more time til there is no juice left at all.

Mitch
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