LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

What's the normal alternator voltage for an LT1?

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Old 02-24-2009, 01:46 PM
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What's the normal alternator voltage for an LT1?

My indicator keeps showing 13-14v values all the time. It should be around 12V right? My indication shows something may be wrong or?

I'm asking because i've burned through 4 low beam sealed beams in the last year and they are not that cheap. I figure they cost that much and are SEALED especially to last longer... It's getting ridiculous and I can't find anything to blame except the frigging high voltage
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Old 02-24-2009, 01:53 PM
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13v-14v is normal. If it reads 12v your charging system is not working.
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Old 02-24-2009, 01:57 PM
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It takes 13.9 to 14.2 volts to keep the 12 volt battery charged.
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Old 02-24-2009, 01:58 PM
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Originally Posted by drptop70ss
13v-14v is normal. If it reads 12v your charging system is not working.
Yep - if it reads 12V all the time you're running off of the battery.
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Old 02-24-2009, 02:01 PM
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Then what the *#%~ keeps burning my low beams... it costs me 70$ each time they decide to get burned out (with shipping to europe)
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Old 02-24-2009, 02:23 PM
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Originally Posted by flexus
Then what the *#%~ keeps burning my low beams... it costs me 70$ each time they decide to get burned out (with shipping to europe)
i cant tell you what is burning out your headlights but i feel your pain

when its cold here (-20 - 0 degrees F) when i start my car it will show well over 15 volts and i burn them out every once in a while too

little hint for ya the next time one of those sealed beams burn out, buy yourself regular 9006's for the low beams and silicone them in the existing housings it's about a third of the price around here
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