green wire with red stripe

S

stang387

New Member

Mar 2, 2007

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May 11, 2008

#1

• May 11, 2008

• #1

With the key turned on how many volts should i get at this wire.
This is one of the 6 wires that goes into the alternator.
Im getting 12 volts everywhere except for this wire. 5.45 if my reading.

I recently changed from fuelie to carb and everything works great except for the dash lights are saying im not getting a charge from my alternator.

Any ideas?????

 

LiquidGT

Member

Oct 8, 2007

368

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Near STL hell

May 11, 2008

#2

• May 11, 2008

• #2

Do you have a 2G or a 3G style alternator?

You could have a bad regulator, or a burned fuse link.

 

S

stang387

New Member

Mar 2, 2007

13

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0

May 11, 2008

#3

• May 11, 2008

• #3

Its a 2G.

I checked the fuseable link and it gave me 12 volts by the solenoid and close to the alternator.
Im stumped at the 5.45 number.

 

LiquidGT

Member

Oct 8, 2007

368

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Near STL hell

May 11, 2008

#4

• May 11, 2008

• #4

Are you sure the alternator is good, ideally it should put out around 14.1v at idle. I would take it off and have it tested; also do you have a good battery and clean terminals?

 

HISSIN50

"How long does it take to get help in here?

15 Year Member

Nov 29, 1999

31,179

33

129

May 11, 2008

#5

• May 11, 2008

• #5

Agreed with having the alt tested.

The fact that your dash light works indicates the circuit wiring is ok. What happens is that 12 volts goes through the dash light (or a resistor in parallel, which is one reason for not seeing 12 volts in this wire) and then the trace goes to the I terminal on the regulator. When the alt is charging the end of this circuit is ungrounded and the light is out. When the alt is not excited, the I portion of the regulator is grounded, which makes the light come on.