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

2001 CHEVROLET MONTE CARLO
200,000 MILES • 3.8L • 6 CYL • 2WD • AUTOMATIC
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JEFF BEATY
  • MEMBER
  • 1 POST
Put a new alternators on car. Why doesn't the amp gauge show anything? Like it doesn't work.
Sep 11, 2019 at 5:01 AM
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ASEMASTER6371
  • ✓Experienced Mechanic
  • 52,796 POSTS
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
Sep 11, 2019 at 6:48 AM
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