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Lets play: What does this wire do?

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Old Aug 16, 2006 | 11:13 PM
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Default Lets play: What does this wire do?

What is the little red wire that goes into the top of the alternator (on the back)

its a single small (like 18 guage or smaller) red wire and it goes into a plug on the top
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Old Aug 16, 2006 | 11:16 PM
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Don't cut it!!! Your coils will explode!
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Old Aug 16, 2006 | 11:28 PM
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an auto shop pulled mine out and didn't know it, so when I started driving I drove for about 25 min. then my car just died, I pretty much ran all the juice out of the battery. but yea don't cut the wire, I think it has something to do with chargeing.
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Old Aug 16, 2006 | 11:34 PM
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Originally Posted by chewy99ws6
an auto shop pulled mine out and didn't know it, so when I started driving I drove for about 25 min. then my car just died, I pretty much ran all the juice out of the battery. but yea don't cut the wire, I think it has something to do with chargeing.
No thats what happened to me, I broke it and didnt notice. I wanna know what it does though, its too small to carry the power for the coils (i think??)
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Old Aug 17, 2006 | 12:24 AM
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Originally Posted by camaroextra
What is the little red wire that goes into the top of the alternator (on the back)

its a single small (like 18 guage or smaller) red wire and it goes into a plug on the top
The smaller wire on the alternator is the power feed for the voltage regulator. It regulates the alternator output current by changing the strength of the magnetic field inside the case. If this wire is disconnected the alternator will spin but won't produce any current, and the car will run until the battery dies.
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