Battery gauage reading really high!! - Chevrolet Forum - Chevy Enthusiasts Forums

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Camaro This classic Pony Car, the Camaro left the lineup in 2002 and was thought to be gone forever, but is made its long-awaited return in the 2010 model year with a 300 HP V6 and a 426 HP V8 SS

2016 Camaro
Platform: F-Body & Zeta.

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Old 10-10-2011, 05:19 PM
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Default Battery gauage reading really high!!

Since I bought my 1997 camaro a few weeks ago its battery gauge has read really high at almost 18 less than a hair from the red mark. Its lowers slowly but not by much after you drive it a while. The other day I went to leave the bank (it usually takes a couple of tries to get it to start) and she wouldn't start. I got a jump and went to the shop. Was told bad battery and good alternator. Replaced the battery. She start right up on the first crank the next couple times I drove it and the gauge read normal at around 13. Now its back to taking it a couple of times to start and the gauge is reading high again. What is the deal?
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Old 10-10-2011, 06:36 PM
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Welcome to the forum. Although they said "good alternator," it sure sounds like you have an alternator problem. With engine running, the alternator should put out .5-2.5 volts higher than the battery voltage. If the gauge in the I/P cluster is to be trusted, it's putting out too high a voltage and boiling the battery. Take it back to the shop and ask them to check the charging voltage.
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Old 10-10-2011, 07:24 PM
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Thanks for the warm welcome. I appreciate the advice. Im hoping to get it figured out soon. Needing to replace the catalytic converter soon so I would like to get this problem out of the way.
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Old 10-10-2011, 08:31 PM
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You need to check it with a voltmeter, if it is that high, your battery is shot. Do you have any starting issues with it?
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Old 10-10-2011, 09:34 PM
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Quote:
Originally Posted by kevinkpk View Post
You need to check it with a voltmeter, if it is that high, your battery is shot. Do you have any starting issues with it?
i just replaced the battery three days ago. and yes it usually takes two cranks to start.
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Old 10-10-2011, 10:00 PM
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You need to verify the charging voltage with an external meter, is it slow cranking with the new battery? Did that change with the old battery?
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Old 10-10-2011, 10:17 PM
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the first cranks you her clicking and trying to start but you have to let off her and try it a second time to get her to actually start. its been that way with both batteries.
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