Question about 1999 Ford Expedition

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My Ford Expedition cuts off after running. Need jump to restart. So I did an alternator check by taking off the positive cable from battery truck still was running. Turn off truck give it a few minutes try to restart won't start just hear clicking sound. Help please!

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Taking off the negative battery cable will tell you if a alternator is bad most of the time but not all the time. If you can remove the alternator and take it to a automotive shop and get it tested you will get a true reading if it's bad usually they will do this for free. Hope this helps.

Posted on Jul 24, 2009

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The lights started to dem, and then the Van cut-off, and wouldnt turn over, until I got a jump. Do I need a battery?

The problem may be the battery terminal connection having corrosion, if not it will be the battery or the alternator. If you can jump it, carefully remove positive battery cable and if vehicle remains running, alternator is good. Local auto part stores can check battery or alternator either by driving to them, if able, or by removing them and taking them to store for checking.

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96 corolla alternator not charging

If the alternator is good, while car is running, disconnect positive cable from battery. If the car stays running the alternator is good. Test the battery for load, at the Auto Parts store. If the battery is good then your problem may be the charging wire from the alternator

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My 1998 Ford Expeditons battery light stays on. What could be the causes?

probably alternator. Voltage should be 14 volts with the engine running and 12 volts off. If not 14, it's not charging.
But clean battery cables at the posts first and check any small wires connected to the positive cable.

Jan 22, 2011 | 1998 Ford Expedition

1 Answer


have you tested the alternator? or just tried to jump start from another vehicle? or if you have access to another car battery that you know is good and starts other car try it. and if the battery does start your truck while it is still running disconnect the positive cable, truck should stay running if it dies your alternator is no good replace it. you can also take alternator to Auto zone or O'Rilley's Chiefs almost any car parts store they should test for free. check battery the water level of course if it is that kind you have a dead cell ,how about the cables? if there is corrosion you can cut cable coating to check if there is no corrosion wrap it up with electrical tape, good luck. hey you also want to check to see if there may be an aux. light that stays on like glove box, dome light ,radio.that is running down battery

Jul 09, 2010 | 1981 Ford F 100

1 Answer

When ever m tuck sits fr a longperiod of time it

every time u disconnect the battery u are resetting the computer have the battery and alternator tested if good need to look into whats draining the battery when off or a short in wiring or a component it takes a few cycles and over 125 miles for emissions alone to reset every time u disconnect the battery and if u also drive with out the battery hooked up u chance damaging the sensors and electronic equipment as well as burning up the alternator

Feb 23, 2010 | 1998 Ford Expedition

1 Answer

I have a 2000 Ford Expedition. The battery was

The battery light is telling you that you are running off the battery,and you have a problem with your charging system. An easy way to check your alternator is to get a volt meter, and measure the voltage of your fully charged battery. with your expedition not running, it should read about 12.6 volts. When you start your expedition, it should read approx 14 volts if your alternator is working properly.
Of course, check all of your connections first, and most auto parts stores will check your alternator out for free, so they might have a chance to sell you one!

Nov 20, 2009 | 2000 Ford Expedition

1 Answer

How do you check if altenator is charging battery,

Most vehicles if you get the car running and unhook the positive battery cable it will stay running that is because it is running off the alternator. if it dies like your talking about I would most definitely say your alternator needs to be replaced. Most likely when you jumped your father in laws pick up there was a bad ground somewhere and your alternator got a surge of electricity and it fried it. Hope this helps.

Mar 09, 2009 | 2005 Ford F-150

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Battary light on , engine cut off car won't crank

sounds like it's your alternator, your alternator charges your battery and runs car once it is started. if you have a bad alternator your battery light will come on, and shortly after your vehicle will die, unable to restart without a jump. I would take your battery to autozone or an auto shop to have your battery and alternator tested.

Jan 28, 2009 | 1999 BMW M3

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1999 ford expedition

not to shure what condition your battery is in as well as the cable connections those corrode real fast check ur battery terminals and clean them with sandpaper aswell as cable connectors and reinstall try you may need a boost when u get it running check voltage gauge notice voltage should be 13 15 volts on a battery that needed a boost to get trck going . using a 12 volt test meter while running pop hood and use tester to see batery voltage after cleaning cables if there is less than 12 volts replace alternator ok good luck hope you geter up and going

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