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Old 04-24-2015, 02:57 AM   #21 (permalink)
2000mc
herp derp Apprentice
 
Join Date: Oct 2008
Location: Lawrence, KS
Posts: 1,049

Saturn-sold - '99 saturn sc1
Team Saturn
90 day: 28.28 mpg (US)

Yukon - '03 GMC Yukon Denali
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Quote:
Originally Posted by spazfishy View Post
The new battery is measured at 12.76 volts, at idle it is 13.85 volts, at rpm it is 12.76 volts.
That's not normal. The voltage at idle is higher than I would expect, but wouldn't indicate a problem on its own to me. Normally voltage revved up a bit will be greater than voltage at idle, but it looks like you're charging system quits on you. If it were mine I would have it get out a manual to further test the generator/ stator/ rectifier/ regulator... whatever it's got in its charging system

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