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Replace the alternator. It sounds like a defective regulator, and it is located inside of the alternator. The volts should never go any higher than 16.

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โˆ™ 2004-12-02 06:24:41
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Q: What do you look at when a 1995 Chevy Blazer battery light comes on above idle the amp gauge reads 18 volts and the car cuts out?
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