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Too much voltage

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Old May 30, 2010 | 04:33 PM
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Default Too much voltage

Just put a new Batt in my vette and took it for a spin, I checked the voltage with a meter at idel was OK, but when I go up to Highway speed the volt meter reads 14.5- 16 Is this my regulator or just using more power at higher rpm
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Old May 30, 2010 | 04:40 PM
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What year ?
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Old May 30, 2010 | 04:52 PM
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1973 but have a volt meter
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Old May 30, 2010 | 04:58 PM
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OK , not sure of the gauge but the later model gauges from 78-82 read high ,actually in the red quite often. You might want to use your meter to be sure you are overcharging.
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Old May 30, 2010 | 05:04 PM
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OK checked it at idel with a hand volt meter was good just when I run it up the voltage incresses, at idel everything is OK at the alt and the batt
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Old May 30, 2010 | 05:05 PM
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Have a after market guage brand new
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Old May 30, 2010 | 05:17 PM
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If your gauge is accurate 16 is too high. Sounds like the voltage regulator. Is your alt a 3 wire ?
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Old May 30, 2010 | 05:25 PM
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? Have a pluggin with two and one bolted with boot ? POS and one bolted ? Neg guess 4 wire
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Old May 30, 2010 | 05:32 PM
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Thats a normal 3 wire. I 've seen the 1 wire aftermarket alternators read on the high side.
Take it off and have A.Z. or Advanced check it for you. Replacing the regulator is fairly easy.
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Old May 30, 2010 | 05:35 PM
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OK was thinking it was the reg but needed some expert advice like your self Roger
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Old May 30, 2010 | 06:37 PM
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Thanks Roger when down to O"Reilly had the alt test, failed everything so got a new one
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