C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

1990 Vette Possible Short

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Old Jun 19, 2018 | 12:34 PM
  #1  
RudeDog's Avatar
RudeDog
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From: Paducah Ky
Default 1990 Vette Possible Short

After cruising awhile and turning off engine for a week or more, my
digital ambiant outside temp flashes - - - instead of temperature. It will still start when this happens but a fan comes on and blows warm air into cabin and cannot turn off or use any of controls such as heater, fan, AC, or defrost. Then another day everything works fine. This last time after parking car with everything off and key out, something came on and ran the 1 yr old battery completely down. I mean completely, no cabin lights or under hood, horn, etc. I was fortunate to purchase a Schumacher charger and got it charged up and started and driven today. I believe it is a short but no guesses where. Any advice or suggestions please? Thank you.
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Old Jun 19, 2018 | 02:31 PM
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Originally Posted by RudeDog
After cruising awhile and turning off engine for a week or more, my
digital ambiant outside temp flashes - - - instead of temperature. It will still start when this happens but a fan comes on and blows warm air into cabin and cannot turn off or use any of controls such as heater, fan, AC, or defrost. Then another day everything works fine. This last time after parking car with everything off and key out, something came on and ran the 1 yr old battery completely down. I mean completely, no cabin lights or under hood, horn, etc. I was fortunate to purchase a Schumacher charger and got it charged up and started and driven today. I believe it is a short but no guesses where. Any advice or suggestions please? Thank you.
Sounds like a short to me. My expertise on the AC units would have me recommend checking the fuse, taking the unit out and using contact cleaner on the connector for the unit, and then replacing it.
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Old Jun 20, 2018 | 07:23 AM
  #3  
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RudeDog
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Default Possible Short

Will research. Thank you Blaster.
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