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Old May 8, 2020 | 07:54 PM
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Default Battery?

I had video but couldn’t load it. Basically at random times driving, the speedometer and fuel gauge will start jumping and read zero full range. Blinking too. Digital center screen is fine. Also, service rear axle comes at the same time. Couldn’t find a date on the battery, connections were tight and clean. I have a load tester at my shop. Any ideas? 2016 ZO6 , 22,000 miles, it might be original battery. Thanks

Last edited by jlbjr; May 8, 2020 at 07:56 PM.
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Old May 8, 2020 | 08:00 PM
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Originally Posted by jlbjr
I had video but couldn’t load it. Basically at random times driving, the speedometer and fuel gauge will start jumping and read zero full range. Blinking too. Digital center screen is fine. Also, service rear axle comes at the same time. Couldn’t find a date on the battery, connections were tight and clean. I have a load tester at my shop. Any ideas? 2016 ZO6 , 22,000 miles, it might be original battery. Thanks
maybe time to change when things start going crazy
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Old May 8, 2020 | 09:24 PM
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Yeah, battery and connectors... reasonable starting places on these things. All the best.
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Old May 9, 2020 | 02:14 AM
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4 years on a factory battery is a crap shoot.
Given the C7's reliance on electronics, IMO it's worth checking both the battery and electrical system operations. Dealer or good Corvette shop can do the testing.
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Old May 9, 2020 | 06:08 AM
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time for a new battery, I went with an AGM CCA between 700 and 800
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Old May 9, 2020 | 07:59 AM
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I would say it is the battery based on your description.
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Old May 9, 2020 | 09:36 AM
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If you are in the market for a new battery, unless you are in an extremely cold climate having a battery with a high reserve is more important than a battery with higher CCA due to the electronics of modern cars.
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Old May 9, 2020 | 12:01 PM
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Most likely your battery is starting to go bad. I would consider getting a new one.
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Old May 9, 2020 | 12:34 PM
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All good advice above. Anything above 4 years you are living on borrowed time.
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Old May 9, 2020 | 01:08 PM
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Originally Posted by jlbjr
I had video but couldn’t load it. Basically at random times driving, the speedometer and fuel gauge will start jumping and read zero full range. Blinking too. Digital center screen is fine. Also, service rear axle comes at the same time. Couldn’t find a date on the battery, connections were tight and clean. I have a load tester at my shop. Any ideas? 2016 ZO6 , 22,000 miles, it might be original battery. Thanks
Having the EXACT same symptoms in my 2015 that I just purchased. This gives me hope that something like a new battery fill fix it.
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Old May 9, 2020 | 07:24 PM
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Unless the battery is shorting out wouldn't the alternator be supplying enough voltage to run all the instruments while driving?
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Old May 9, 2020 | 09:55 PM
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I changed battery, so far so good. Old battery tested good, however it was 45 months old. Voltage from alternator stayed around 14.2- 14.7 solid. Prior to the swap, the volts were bouncing up into the 15’s. So the alternator was fishing for the battery drain. Go figure.
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Old May 9, 2020 | 10:42 PM
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Good to hear the car is back to normal.
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