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20 amp gauge blowing

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Old Sep 7, 2022 | 10:46 PM
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Default 20 amp gauge blowing

On my 1982 corvette the gauge fuse a 20 amp fuse keeps blowing. I disconnect the wiring connection to the center cluster gauges and when I replace the fuse it blows immediately. Any help would be greatly appreciated.
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Old Sep 8, 2022 | 12:09 AM
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Originally Posted by Skymike86
On my 1982 corvette the gauge fuse a 20 amp fuse keeps blowing. I disconnect the wiring connection to the center cluster gauges and when I replace the fuse it blows immediately. Any help would be greatly appreciated.
GEt out the ohm meter. Trace the wires for continuity to ground. You have a short. Even a strand of wire can cause it. Isolate the wiring possibly and power up to see if it doesn't blow.
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Old Sep 8, 2022 | 03:04 AM
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Moved to C3 Tech.
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Old Sep 8, 2022 | 11:03 AM
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There was just a post about this. Check the wiring diagram, but I think the cigarette lighter is on the same circuit. A wire could be pinched to ground, as well.

Wiring diagrams can be found here:
http://wordpress.keystonestatecorvet...m/?page_id=118
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Old Sep 9, 2022 | 04:08 AM
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On a 77, which I would assume that a 82 would be similar.
Gauges fuse powers the center cluster guages. the tachometer, the brake warning light, cruise control, seatbelt-headlight-ignition key warning buzzer And power to the generator warning light.
Not the cigarette lighter.
But still, a lot of stuff.
Best of luck.
And PLEASE purchase the genuine GM Electrical Troubleshooting Manual for your year.
Invaluable investment in your car.
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