What would cause the amp gauge to show nothing while car is running but all other gauges work

Tiny
JEFF BEATY
  • MEMBER
  • 2001 CHEVROLET MONTE CARLO
  • 3.8L
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 200,000 MILES
Put a new alternators on car. Why doesn't the amp gauge show anything? Like it doesn't work.
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Wednesday, September 11th, 2019 AT 12:01 PM

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Tiny
ASEMASTER6371
  • EXPERT
Good afternoon,

Do you have a voltmeter to check the voltage at the battery with the engine running?

https://www.2carpros.com/articles/how-to-check-a-car-alternator

Roy
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Wednesday, September 11th, 2019 AT 1:48 PM

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