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dave makris Posted on Mar 29, 2017
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Olds 88 alternator fuse

New battery, new-ish alternator. Running it several days and the alternator was putting out 14.6 volts. Last night in fog and rain I had the headlights, heater fan, wipers going then turned on the rear window defogger and the alterntor light went on. Now the alternator isn't putting out juice with all the accessories off. Is there a fuse for the alternator circuit that I may have blown? Fuse box under steering wheel does not list anything for alternator. Secondary fuse panel at passenger side has 3 fuses, all visibly look OK. Does anyone know if there's an inline fuse to the alternator control circuit and where it would be? Or suggest an idea to test the alternator control circuit?

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D Aubrey

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  • Oldsmobile Master 1,136 Answers
  • Posted on Apr 28, 2017
D Aubrey
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Joined: Mar 31, 2015
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You may find a blown fusible link or burnt wire/bad connection at the starter large terminal.I would start the car and check voltage output at the alternator output terminal first in case it's just a bad alternator.If you have 14+ volts at the alternator output terminal,you could also just run a 10 gauge wire from that terminal to battery positive directly and disconnect the alt feed to the starter terminal.

5 Related Answers

Anonymous

  • 335 Answers
  • Posted on Jul 31, 2008

SOURCE: All of a sudden my

119125158Here is the Wiring Diaggram For that Circuit Hope It Helps you contact me if you need More help.

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Anonymous

  • 6 Answers
  • Posted on Mar 27, 2009

SOURCE: Rear window defogger on Nissan ExSaloon N16

Are the 2 connectors (male) fitted tightly on the rear window? Sometimes you have to have them resoldered. I used special electric glue. Canadian Titr. You can also use alum. duct tape. Good luck.

Anonymous

  • 1608 Answers
  • Posted on Jan 07, 2010

SOURCE: Both headlights stopped working. Need to turn on

You probably have a bad switch.If your hi beams work then the fuse is good.

honeymokey

honeymokey

  • 3113 Answers
  • Posted on Apr 07, 2010

SOURCE: I have a 1990 olds 88 royal which has the digital climate control

Check the blower motor connector first. Turn it on an wiggle connector. These will lose connection over time.

Anonymous

  • 158 Answers
  • Posted on May 16, 2011

SOURCE: The car with the problem

pecoslarry, One of the most common problems with power windows is the wires coming from the door to the vehicle. Seeing that you have confirmed that the windows work with a different power source tells me that you should cut the rubber boot, that goes from the door to the vehicle, open and check for any broken wires. This happens because the drivers door is the one opened most often and the wires get bent back and forth until they break. You seem to have done everything else that I would have suggested so try this and No there is no inline fuse. Good luck with this.

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Related Questions:

0helpful
2answers

Battery goes flat when not in use after 3 days same with a new battery

First check alternator charging rate , with engine running check voltage at battery should be 14 volts + or - .3 volts if ok check for light staying on in trunk or glove box .
0helpful
1answer

Can alternator put out 14.2 volts but not enough amps to charge battery and turn off dattery light?

Yes and no.
It sounds like you have a wiring problem.
The alternator output could be 14 volts and only one or two amps, but that would be enough to kill the warning light. Its more likely the alternator is charging but the current is not reaching the battery.
0helpful
1answer

2007 Tahoe alternator not outputting voltage. Alternator diagnostic said it was good and I have a new battery (had to buy it in order to get home). It wasn't working last night, was working this morning,...

Start at the battery and check with a dc volt meter while it is running. A good battery puts out a max of 12.5 volts.... If you have ATLEAST 13.0 volts then your alternator is working, but not at peak efficiency which is more like 14.0 volts. If you detect that it isn't charging the next step is to attach the volt meter directly to the alternator. There should be a "hot wire(s)" meaning it should have a rubber boot over it and usually is red like the wires running to the positive side of the battery. NOT running it should show the same voltage as the battery, with the vehicle running it should be producing above 12.5 volts more like 14 volts. If you DO have that type of voltage (14v) there and not at the battery while it's running then yes the alternator is good and the wiring between the alternator and battery is bad/shorted. Don't be MISLEAD because alternators that are going bad have a tendency to work intermittent. If this is the case don't chance it, REPLACE it
0helpful
1answer

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.
0helpful
1answer

Battery discharges in about 3 days if not run.

it may have deffective diode on the charging system(the alternator). 14 volts is an over charge in a battery. ampere reading must be on what the battery designed.
1helpful
2answers

Battery Light came on... battery terminal( neg) has acid buildup... cleaned and replaced with new battery... battery light ok at first... one day later... battery light is back on?

is the alternator charging properly ! at battery car off with no accessories on, should be at least 12.6 volts. with car running, at the battery there should be at least 14.2-14.7 volts if alternator is good. but make sure belt for alt. is ok first. if lower then 14 volts change alternator. good-day !
0helpful
1answer

When I turned off my car last night it was like when a fuse blows in your house; all the electricity just cut out at once. Then no power for anything, I mean anything. I am guessing alernator, but hoping...

well first of all. check main fuse in fuse box. to check alternator--- with car off at battery, voltage should be at least 12.5 to 13 volts. then when running. there should be at least 14 volts or a bit higher, at battery. but it sounds more like a fuse then anything else. if all is satisfactory then check to see if power is going through ignition. have a good one !!
0helpful
2answers

I HAVE A 1995 CADILLAC ELDORADO AND NEW BATTERY WONT CHARGE

altenators have to be running a 13.5 volt charge to be good
1helpful
1answer

My 2000 ford ranger and something draining battery

bad alternator possible or bad battery..even though its new that battery can be bad. I would take a volt meter and with the engine running check the volts of the battery..If the volts are 12 you need to replace alternator, if volts are 14 you need to check the battery. to check the battery hold the volt meter to the battery and have someone start the car..while the starter is cranking battery volts should not drop below 10volts.if they do your battery is bad.
1helpful
1answer

1983 Oldsmobile Delta 88 Electrical problem. I AM STUMPED

It goes thru the dash circuits. Yes! add a wire from the alternator output to the plus battery . The charge lite may be inoperative - either on or off. You might want to put a fuse in that new line.
A cheap volt-ohm-meter would help you see if the alternator is charging 14-14.8 volt and the alterantor field is being energized.
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