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Old 07-01-2003, 11:57 AM
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G-Benz G-Benz is offline
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Join Date: Apr 2001
Location: Dallas/Fort-Worth
Posts: 5,711
Originally posted by Car Nut
Is it okay to have 15V output on the Alternator? My 1987 Pontiac 6000LE V6 battery light is on intermittently. I changed the battery already, but the light is still on intermittently.


Car Nut
15V seems a bit high (14.4 or so is nominal, as previously posted).

I had my regulator fail on my W124 once, overcharging so badly the battery was gassing! A quick voltmeter measurement showed 17.5V at the battery terminals!!!
2009 ML350 (106K) - Family vehicle
2001 CLK430 Cabriolet (80K) - Wife's car
2005 BMW 645CI (138K) - My daily driver
2016 Mustang (32K) - Daughter's car
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