Question about 1986 Buick Century

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1986 buick charging system alternator

I put a new alternator but the battery keeps dying. is their a fuse or some way to go around the problem

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Have the battery load tested...(at auto zone ore the like) sometimes batterys can be so bad they wont take or hold the charge

Posted on Feb 09, 2009


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Make sure battery has a full charge and battery connections all good. Check your charging system.

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Fusible link?????

Normally the "Fuse-able Link" is right next to the Battery. It'll be a short length of wire supplying all the current to the fuse box.But this won't be the cause.
I have a problem with your description "Battery still dies while driving around". Can you elaborate on this?
Assuming the Battery and Alternator are not defective, the fan belt is tight enough and the Battery is fully charged, all should be ok.

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71 c10 not staying charged... new battery alternator fuses good and new voltage regulator

Maybe it wasn't running long enough to charge up the battery?
Stop trying to jump it, when you are having problems with it dying, take the battery off and have it charged. And/or buy a $20 voltmeter to see what the battery shows. If it says less than 12 volts, it is discharged, and needs charging. A good battery that is not run down should have at least 12.5 volts. A new battery that is charged should have very close to 13 volts, maybe 12.8 volts.
When you have the truck running, check the alternator for charging. You put the voltmeter right on the battery and check it again. This time, with truck running, battery should show at least 13.5 volts. That shows the alternator is working. A good alternator will put out about 13 or 14 volts-the regulator will keep it from going any higher to prevent problems, like a melting battery or electrical parts burning out.
I would say get the charging system working right, then address the problem of dying at stop lights. That could be a carburetor problem, if the alternator is working.

Aug 15, 2013 | Chevrolet Cars & Trucks

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Daughter called me wont start. checked battery at is good. someone stopped to help them and bang on startere and it starts up. Bad starter. Starter replaced. Next day daughter...

it sounds like you have blown fuse to the Alternator.. I don't know what car you are talking about but they charging systems vary.. But if alternator isn't getting all the power it needs it won't charge. this should be checked.

good luck

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Will start for a couple of seconds then die. this is with a jump with out jump car will not start

Sounds like bad battery or alternator. Recharge battery and try again. Test battery and alternator

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1986 buick regal volt lite stays on when car is off...

hello mike, how old is the battiry ? you might need a new one if its hot holding a charge , does the car die when your driving it ? could be a bad alternator then or bad tension on the drive belt or a bad belt.also try cleanning the post and the cables that connect to the battery and make sure there tight.

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Somerset Alternator

the voltage regulator is internal on that alternator. Take the alernator back off and take it autozone or advance and have them bench test it to see if its good or not. That model car doesnt have a fuse for the alternator either and the regulator is internal on that model. Thats a standard sg gm alternator. those above stores do not charge for testing it for you. another quick way if you have a volt meter is black end of volt meter to the negative battery cable and the postive end of the meter to the thick red wire on the alternator that you had to put the nut on. then with car running that should show 13 to 14 volts. If not, suspect that alternator. But try the free check on it before going through too much more grief with that. if you had it tested. take the whole car to the autostore and ask them to check it while the car is running, Autozone and advance both have the machine they will take out to the car and check it for free. Otherwise, get a volt meter and check it as I said. If the alternator is putting out, then you have a bad cable or the 'field' wire is bad.

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