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1986 Chevy Corvette electrical issues

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Old Jul 5, 2025 | 02:05 PM
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Default 1986 Chevy Corvette electrical issues

1986 Chevy Corvette, sitting for 10 years with 35,000 miles
working on trying to start it, hook the battery up and turn the key, lost all electrical power everywhere. While trying to diagnose, I disconnected the starter power cable, then all the electronics came back on. What would cause this?
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Old Jul 5, 2025 | 02:15 PM
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Originally Posted by bseiff
1986 Chevy Corvette, sitting for 10 years with 35,000 miles
working on trying to start it, hook the battery up and turn the key, lost all electrical power everywhere. While trying to diagnose, I disconnected the starter power cable, then all the electronics came back on. What would cause this?
clean all the connections!
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Old Jul 5, 2025 | 03:33 PM
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Originally Posted by Cruisinfanatic
clean all the connections!
Battery, starter, fusible links, what others?
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Old Jul 5, 2025 | 09:24 PM
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Sounds like one or two of your battery terminals need to be cleaned and retightened .
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Old Jul 7, 2025 | 06:55 AM
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Originally Posted by AGENT 86
Sounds like one or two of your battery terminals need to be cleaned and retightened .
I will try that. I forgot to mention that it is consistent when I put the starter back to power then I lose all power again, and once taken off power comes back on. Not sure if this would change anything for the fix but thought I’d throw it out there
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Old Jul 7, 2025 | 09:17 AM
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Are there any sparks when reconnecting starter cable.
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Old Jul 10, 2025 | 01:56 PM
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Check all chassis ground connections. They are prone to go bad on these cars and get corroded.
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