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01-01-2011, 06:18 PM
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#1 |
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U.S. Army Green Beret Sniper
 
Join Date: Dec 2009
Location: Enterprise Alabama
Posts: 57
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Alternator question
How do you now if your alternator has an internal regulator or not? With my truck running with an external regualtor I have 12.5 volts at battery. When I apply my power probe with 12 volts to the blue wire at the regulator or alternator I have regulated voltage of 13-15 volts. When I shut off the truck and start the truck again it goes back to original voltage. Could I possible have a internal voltage regulated alternator installed on my truck with a external regulator installled? I have had the alternator tested and it is good. Replace the external regulator with new one. This thing has really got me confussed...............................any help would be appreciated......HAPPY NEW YEAR>>>>>>>>>>>>>>>>>>>>.
__________________
 "YOU CAN RUN AND YOU CAN HIDE, BUT YOU WILL JUST DIE TIRED"
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01-01-2011, 06:25 PM
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#2 |
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Senior Member
Join Date: Aug 2006
Location: Minnesota
Posts: 943
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Re: Alternator question
I could be wrong but I think the internal regulator alt has a flat plug with 2 wires on it and an external alt plug has a square plug with 1 wire on it.
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01-01-2011, 06:41 PM
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#3 |
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Senior Member
Join Date: Aug 2006
Location: Minnesota
Posts: 943
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Re: Alternator question
Pretty sure all the internal regulators look like this: The external one may have had two wires but was square.
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01-01-2011, 07:27 PM
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#4 |
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U.S. Army Green Beret Sniper
Join Date: Dec 2009
Location: Enterprise Alabama
Posts: 57
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Re: Alternator question
Well I found my part number on my alternator (1100121) which is a AC Delco (remy) I did research on the alternator and it is a 10si which means thats its a internal regulator alternator. Who ever installed the alternator installed a internal regulator alternator with an external regulator on the truck also. That explains all the problems but before bragging I am headed to my shop to check it all out for sure...................wish me luck......
__________________
"YOU CAN RUN AND YOU CAN HIDE, BUT YOU WILL JUST DIE TIRED"
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01-01-2011, 07:32 PM
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#5 | |
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just can't cover up my redneck
Join Date: May 2004
Location: Columbus OH
Posts: 11,414
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Re: Alternator question
The stacked (square) one looks like this.
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