Low Reading on Amp Gauge

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Low Reading on Amp Gauge

Postby Horsehammerr » Thu Aug 12, 2010 4:24 am

I've noticed lately , when I start my truck the gauge reads like always a little over 14. But now as I warm up on down the road my gauge has dropped to about 12.5. This is with all elec. acc. off. Is this a sign of a major problem ? :?:
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Re: Low Reading on Amp Gauge

Postby HenryJ » Thu Aug 12, 2010 4:44 am

Sounds like you need to have your alternator tested. Might be time for that AD244 swap?

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Re: Low Reading on Amp Gauge

Postby killian96ss » Thu Aug 12, 2010 4:47 am

Check the voltage @ the alternator with a multimeter. If its between 14-15 volts your ok. If its under 14 volts, you may need a new alternator. Sometimes our high quality GM gauges are the problem!

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