I bought a 90 Acura Gs from a friend with new alternator installed. The car would run for a couple of days and then the battery would go dead. I got a new battery and the car ran for about a week and the battery went dead again.
I tested the alternator by unconnecting the battery completely while the car was running and the car would continue to run. I hooked up the alternator to the battery again and tested the voltage. It would drop down to about 11.5v, but when I turned the headlights on the voltage would go back up to around 13v. I am wondering if there is a way to adjust the alternator or if it is just bad and I need to replace. I am pretty sure there is a problem with the alt but not sure if there is a component to switch out on it or just get new. Please advise Thanks.

 

Is my question unclear?? Come on guys alittle help here.

 

you alternator needs to be pushing 13v or more at all times if it isnt have it checked

 

Sounds wierd that when lights are on the voltage increases{Almost like a arch in the system}. As for adjusting the alternator ,that's a new for me,though changing out the eternals {rebuild}would be an option. I have an 89 acura and before i got it my friend was having trouble with keeping the battery alive,{alternator checked out o.k. so he put in another battery and yet it started dying as well{turned out the disturbuter was going out or so we thought}A new one ran a little high for his likings so we cleaned it and no probs. since{a year later}

 

1 thing u probally should charge that battery get knew alt found out its easer and cheaper 2 go new some times. Alt is about 70 or 80 bucks just got one. Labor is a biatch though. I suggest u get formiliar with yur car and take alt out on warm day wif about 6 hrs lol in lame dummy terms. Or u can get car knoledgeable buddy and take a lil while and on bolt alt to save a lil bit on labor if your broke i believe its a 12 n 14 socket you need but its tight lol. Good Luck

 

oh yeah i just got a new computer might b that