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My 1980 elcamino tach. show 400 rpm with the key off and is…

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my 1980 elcamino tach. show...
my 1980 elcamino tach. show 400 rpm with the key off and is drawing current.(battery runs down unless i dis connect the battery). it seems to operate ok when the v8 is running.but as soon as the key is turned off the needle goes to 400??
Submitted: 2 years ago.Category: Classic Car
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Answered in 4 hours by:
2/5/2016
Classic Car Mechanic: Ron, Classic Car Technician replied 2 years ago
Ron
Ron, Classic Car Technician
Category: Classic Car
Satisfied Customers: 38,821
Experience: 35 yrs. experience as an automotive technician.
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Hello, my name is ***** ***** I am a professional here at Just Answer. I have noticed that your question was not getting a response and thought I would see if you still need help with this.I apologize for the delay and I hope I can still assist you with this here.

If you unplug the tach dose the draw leave?

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