Brake/battery light on. Overcharge? - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

240dream · 08-30-2013, 05:23 AM

So both lights are on, this happened maybe 7 months ago but got a remaned alternator and problem went away. But now it's back on but with the car sitting overnight battery still holds to 12.3 volts. I think the problem is at idle my car puts out 15.6v at the alt and 15.3 to the battery is this to much? Is that why my lights on? I've heard it could be the voltage regulator, if it is will a shop be able to replace it rather than get a whole new alt?

Thanks

typhoonslippery · 08-30-2013, 07:15 AM

the voltage regulator on the alternator is done by the sounds of it

240dream · 08-30-2013, 09:45 AM

Just rechecked it and the plug that goes into the side of the alternator had a wire that broken off could this be the culprit

jr_ss · 08-30-2013, 09:55 AM

Yes, that could be your problem. What does it look like?

kennedy8383 · 09-02-2013, 07:49 PM

It your alternator problem. 14.7 volt correct running voltage

240dream · 09-10-2013, 12:39 PM

So I replaced my alternator and still have 15.3 volts at the alternator. What can it be ??

08-30-2013, 05:23 AM	#1
240dream Zilvia Member Join Date: Nov 2010 Location: norwich ct Age: 33 Posts: 214 Trader Rating: (4) Feedback Score: 4 reviews	Brake/battery light on. Overcharge? So both lights are on, this happened maybe 7 months ago but got a remaned alternator and problem went away. But now it's back on but with the car sitting overnight battery still holds to 12.3 volts. I think the problem is at idle my car puts out 15.6v at the alt and 15.3 to the battery is this to much? Is that why my lights on? I've heard it could be the voltage regulator, if it is will a shop be able to replace it rather than get a whole new alt? Thanks __________________ All I read was "I'm a little bitch and don't belong in this thread".

08-30-2013, 07:15 AM	#2
typhoonslippery Zilvia Addict Join Date: Nov 2003 Location: Canada Posts: 812 Trader Rating: (10) Feedback Score: 10 reviews	the voltage regulator on the alternator is done by the sounds of it __________________ CA18 is the only way to go!

08-30-2013, 09:45 AM	#3
240dream Zilvia Member Join Date: Nov 2010 Location: norwich ct Age: 33 Posts: 214 Trader Rating: (4) Feedback Score: 4 reviews	Just rechecked it and the plug that goes into the side of the alternator had a wire that broken off could this be the culprit __________________ All I read was "I'm a little bitch and don't belong in this thread".

08-30-2013, 09:55 AM	#4
jr_ss Post Whore! Join Date: Dec 2005 Location: Pa Posts: 6,415 Trader Rating: (35) Feedback Score: 35 reviews	Yes, that could be your problem. What does it look like? __________________ My SR20VET Does your VTC gear rattle in your S14/15 SR? PM me.

09-10-2013, 12:39 PM	#6
240dream Zilvia Member Join Date: Nov 2010 Location: norwich ct Age: 33 Posts: 214 Trader Rating: (4) Feedback Score: 4 reviews	So I replaced my alternator and still have 15.3 volts at the alternator. What can it be ?? __________________ All I read was "I'm a little bitch and don't belong in this thread".

09-02-2013, 07:49 PM	#5
kennedy8383 Zilvia Member Join Date: Feb 2012 Location: Kanada Age: 41 Posts: 208 Trader Rating: (1) Feedback Score: 1 reviews	It your alternator problem. 14.7 volt correct running voltage