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DIC battery volts

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Old Nov 29, 2011 | 12:33 PM
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Default DIC battery volts

my display reads 13.4 - 13.9
Should it read better than 14 volts?

I put in a new battery this weekend.
Is my altenator going south?

Thanks,
Joey
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Old Nov 29, 2011 | 02:12 PM
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The display voltage is not always very accurate. Use a DVM across the battery itself.
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Old Nov 29, 2011 | 03:41 PM
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How did we ever drive cars with a needle with a big green range or a light that came on when there was no voltage from the alternator? There's nothing wrong with your alternator.
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Old Nov 29, 2011 | 03:44 PM
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I agree with you totally. I see the newer guages and digital readouts as a better way of identifying possible problems, before we break down on the side of the road. What I don't like is seeing new cars out there without the extra information. I've got a new 2012 CTS with almost nothing in it to let you know what's going on with the engine. I don't like that. More information to the driver is better than wondering why it quit.
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Old Nov 29, 2011 | 03:59 PM
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Originally Posted by 65GGvert
How did we ever drive cars with a needle with a big green range or a light that came on when there was no voltage from the alternator? There's nothing wrong with your alternator.
The shop in a box checked the alt. about a month or two ago and said it was week. I kept driving with no problems. Then I let it sit for a week or two and the battery went dead. I trickle charged it to 100%, drove the car, then the battery went dead the over night. I bought a battery and just remembered about the DIC (I had been looking at the needle). I figured the alt. was not the issue. I thought I would just ask some like mined professionals.
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Old Nov 29, 2011 | 04:13 PM
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Originally Posted by drtyTshrt
The shop in a box checked the alt. about a month or two ago and said it was week. I kept driving with no problems. Then I let it sit for a week or two and the battery went dead. I trickle charged it to 100%, drove the car, then the battery went dead the over night. I bought a battery and just remembered about the DIC (I had been looking at the needle). I figured the alt. was not the issue. I thought I would just ask some like mined professionals.
Based on the voltages you are seeing, the alternator is charging fine. You may have just had a bad battery, or something may be draining the battery. I assume when you changed the battery you cleaned the connections and torqued them?
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Old Nov 29, 2011 | 04:26 PM
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Originally Posted by 65GGvert
I assume when you changed the battery you cleaned the connections and torqued them?

I am going to check for phatom drains but I'mpretty positive it was the battery. Cleaned and torqued the connections witha brass wire brush at 45inch lbs right? Yeah. Ah, yeah I did that.
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