Question about 1999 Ford Expedition

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Why isn't my alternator sending a charge to my battery. i replaced the battery and the alternator are spanking new.. is it my wiring,,plz help!!!!

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First get a maintence/repair manual from your local auto parts store and see what the book reccomends. Because what it sounds like to me is that one of the wires was put on wrong/ to a different lug than it was supposed to go to. Ive experience this myself.

Posted on Jul 12, 2009

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2 Answers

Car will not charge


Usually the car has an ac alternator with a built in rectifier ,so if u have good hands replacing rectifier will cost u maybe 15$ and new alternator maybe 150$ or more

Feb 23, 2015 | 2001 Ford Taurus

1 Answer

Hooked up battery backwards on my 1992 ford explorer. Got it running now the alternator isn't charging the battery. Has 12 volts power. Could it be the points on alternator where the wiring hooks into...


The battery needs 12.6 volts or more to be in service
When the engine is running you need 14 volts or more
out of the alternator to charge the battery
You can test the alt by testing across the battery term
or the alt output wire & ground to case or motor
Could be the diodes got fried & you need a new alt
Have it tested at parts store, if you can't figure it out
Check all fuses & fusible links first

Jul 26, 2013 | Cars & Trucks

1 Answer

I have a 98 Ford Taurus. Somehow water got into alternator and back charged everything. the radio went out i replaced the alternator, the car started right up, but the battery indication light came and it...


Sounds like you fried a circuit or two. The battery light means the alternator is not charging the battery which you know.
The charging circuits will need to be checked, it could be a fuse or a fuseable link which is a wire that acts like a fuse.

Jul 01, 2013 | Cars & Trucks

1 Answer

I replaced the Alternator on my 1986 Oldsmobile Cutlass Ciera and The battery is not holding a charge. What could be causing this?


Providing there is no trunk light, or glove box light or anything else that is staying on, the biggest culpret for draining batteries is the starter. Try replacing it with one from an auto wrecker, just in case it isn't the problem.
Make sure there are no power cables or wires burnt or cracked somewhere that are draining the battery.

Feb 06, 2012 | 1986 Oldsmobile Ciera

1 Answer

The 84 van dura 2500 my son has wont hold a charge even with a new a new battery and there is a yellow wire under the break peddle that has come loose what could be the problem


There are more than one yellow wire under the dash, so can't really help you locate where it should attach. You might have to take out the drivers seat and just get under the dash and see if you can locate where is needs to be. Try stretching out the wire and seeing what terminals/items are in the reach of the wire, to elimate items that are out of reach. But for the meantime I would either cap it with a non-conductive wire nut or wrap it with electrical tape to make sure it isn't contacting metal and discharging the battery.

Now for the charging problem. When you replaced the battery, did you have the alternator checked to make sure that it is producing enough amperage to drive the car components and charge the battery? If not, I would take it to an auto parts store and ask them to check the alternator and the battery. If that isn't the problem, then you have something that is draining your battery while it is setting. It could be a wire that the insulation has rubbed off of and causing a short; or a light that stays on, or a component that should be off that is on. To find that will take a clamp on amp meter and a lot of time and patience to find that one wire that is causing the drain.

Sep 15, 2011 | GMC Dura Cars & Trucks

1 Answer

Truck will not turn over, gauges all come on but nothing from the engine, acts like dead battery but it is brand new...it did it before and was told it was the battery, put a new one in....worked great for...


your charging system isn't working, if you replaced the battery and it worked for a few days, then its not being re charged after starting, I'm assuming you cleaned and tightened all the battery post connections when you installed the new battery , if not do so ,, charge the battery from an outside source, once you know its fully charged,, use a meter, and start the car ,, check the voltages at the battery posts,, you should be getting a reading of 13.5-14.5 volts, if not your alternator isn't charging the battery

Sep 07, 2011 | 2004 GMC Sierra

3 Answers

Daughter called me ..car wont start. checked battery at Autozone...it 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

Sep 02, 2011 | 2000 Oldsmobile Intrigue

1 Answer

Saturn 98 wont hold charge, batterie light turn on and than car stop running... is it the alternator or the wireing


Alternator is your likely problem. The wiring isn't bad in saturns, just need to replace the belts when needed. Your problem though is definitely that it just doesn't keep a charge, so your alternator is responsible for your dilemma.

Jun 23, 2011 | Saturn SL Cars & Trucks

1 Answer

2000 kia sportage charging.


hi check the main alternator charigng wire the comes out of your alternator see if it is sending a 14v no less reading on a multimeter if not replace the alternator if so go to your battery see if the multimeter readings are the same as the alternator if so do a battery discharge test if not trace the path of the main wire which comes from the alternator to the battery for breaks and all connections yates210456

Sep 24, 2008 | 2000 Kia Sportage

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