Voltage gauge question

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06-03-2011, 08:02 PM

Bhahn25

Beginning Member

Thread Starter

Join Date: Apr 2011

Posts: 32

Voltage gauge question

I have a 2000 blazer and usually on my other cars the voltage gauge reads around 14 or maybe a little over. But it runs at around 12 b the way it looks. I was just wondering is that normal or is that a little low

06-04-2011, 06:05 AM

abig84

BF Veteran

Join Date: Aug 2009

Location: munster indiana

Posts: 3,424

That's low IF its even reading right. My 90 is the same way and its been like that for years best bet is to check the output of the alternator with a different guage

06-04-2011, 10:02 PM

kristoph30

Senior Member

Join Date: Oct 2009

Location: Ohio

Posts: 608

stick a digital volt meter on the battery when it is running. If it reads good then dont worry. If it doesnt, check for bad connections or an altenator going bad.