Question about 1999 Ford Expedition

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1999 ford expedition

Battery won't keep a charge

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  • Ford Master
  • 5,520 Answers

Have the battery load tested. Have the Diodes checked in the Alternator. What can sometimes happen is the small plastic plug-in that supplies power to the stator will ride up inside the plastic clip. What mechanics have done is work the wire out of the plastic clip.and secure the wire on the tab inside the Alternator. You would then slide the plastic back down the wire and snap click it into place.

Should you check out good for both the battery and Alternator, you need to find a short. With several circuits staying "live" at all times, this is not an easy diagnosis. Ford has some Circuit analyzers which fit in-between the major PIN connectors and some of these connectors have up to 100 pins. These Circuit analyzers test all the plug connectors at 1 time. The time savings are major.

You can individually test individual circuits. You probably have a Relay staying on when the ignition is shut off. It will be time consuming to find.

Posted on Mar 20, 2014

  • Paul
    Paul Mar 20, 2014

    Should we attempt to replace the alternator fuse? If so, which one is it and where is it located? The battery and alternator are bran new

  • fordexpert Mar 20, 2014

    I believe there were some service bulletins about wire chaffing and the area is for the fuse was within 24 inches of the Alternator. Again, make sure the metal clip inside the plastic actually secures to the metal tab inside the Alternator.

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locate the relay for the interior lights and doorlocks and replace it.

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SOURCE: My 1999 ford expedition won't start

check your ignition module,most of the time its on the side of your distributor

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SOURCE: Ford 2003 Expedition EB. Check Charging System

Its probably the alternator. It will need to be tested on the vehicle with the engine running and the light illuminated. Measure the battery voltage with the engine running. It should be at least 13.5 volts. If it is lower have the alternator tested at a shop with a charging system tester.

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SOURCE: The 4WD will not disengage on my 1999 ford expedition

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SOURCE: 1999 ford Expedition caliper removal

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Related Questions:

1 Answer

My 1999 ford expedition wont hold a charge


have a load test done on the battery as it indicates a dead cell

Oct 26, 2013 | 1999 Ford Expedition

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2004 ford expedition charging system failed?


Sounds like battery not holding charge. Or a light staying on, boot or glovebox? Most likely battery tho.

Nov 16, 2011 | 2004 Ford Expedition

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The speedometer in my 1999 Ford Expedition keeps bouncing I was told it was bouncing around because I got a new battery and my altenator was not properly charging it. . .is that true?


I never heard this, but it may be a bad speedometer sensor(which is located on the transmission). If the alternator is not charging, try this. Turn on your truck and while it's running remove the ground battery cable, if it dies on you, then you need a new alternator, if not then your alternator is working like it's suppose to.

Jul 12, 2011 | 1999 Ford Expedition

1 Answer

Changed alternator,battery and still won't keep battery charged


CHECK ALTERNATOR 175 AMP MEGA FUSE. AND CHECK ALTERNATOR 20 AMP INLINE FUSE.IF FUSES OKAY.REPLACE BATTERY CABLES AND CHECK ALTERNATOR BATTERY FEED WIRE AND VOLTAGE REGULATOR WIRES FOR DAMAGE.AND CHECK DRIVE TENSION.MAKE SURE DRIVE BELT NOT DAMAGE OR SLIPPING.

May 30, 2011 | 2003 Ford Expedition

2 Answers

I have a 1999 ford expedition it would not start but once i put the jumper cables on it or a battery charger on it over night it starts.once you drive it awhile it will be hard to star as if its starving...


It's the battery. Hence why it starts when you charge or jump it. Snag a new battery and don't forget to bring your old one to avoid a core charge.

Mar 14, 2011 | 1999 Ford Expedition

1 Answer

Red battery Icon came on had battery checked alternator checked sometimes seliniode just clicks have to charge battery this is a 1999 ford expedition


the red battery symbol indicates a problem in the charging
system , usually an alternator gone bad or possibily
a blown fuse or associated wiring problem.
Advance auto can check it for free.

Aug 21, 2010 | 1999 Ford Expedition

1 Answer

I PUT A NEW ALTERNATOR AND BATTERY IN A 1999 FROD


check for a blown fuse,sometimes if the battery cable is connected when changing an alternator it overloads the fuse,also check for power at any fusible links

Oct 21, 2009 | 1999 Ford Expedition

1 Answer

I've lost contact where'd you go?


Get the battery tested first, then the alternator belt for tension and finally the alternator charging rate output is OK.

Jan 13, 2009 | 1999 Ford Expedition

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