Question about 2003 Ford Explorer

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Batter Light On, Ford Explorer

2003 Ford Explorer, battery light on after alternator was replaced. Battery checked and was replaced also. Battery light still on; how can I reset it?

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  • MotorCop May 16, 2009

    Alternator is brand new. Where is the wiring harness for the alternator? Thanks!!!

  • spencer14068 May 11, 2010

    unpluged the plug to the alternator...waited 10min light still on

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  • Master
  • 4,669 Answers

Does the alternator work? Does the light go out if you unplug the plug in on the alternator?

Posted on May 16, 2009

  • Clint Smock
    Clint Smock May 16, 2009

    It should be plugged in to the side of the alternator. Just because it's new doesn't mean you got one that isn't bad.

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2 Answers

My altanator light came on today what could it be


the alternator or "battery" light will typically come on when charging voltage is too low. Check for voltage at the batter with the vehicle running. If you see less than 13 volts than the alternator is likely not working anymore.

If this is a v-6 model the alternator can be a little tricky to replace. The passenger side tire, splash shield, and drive axle will need to be removed before the alternator can be removed.

I’m happy to assist further over the phone at https://www.6ya.com/expert/jeremy_d728a59f986299fa

Sep 09, 2015 | 2005 Ford Escape

1 Answer

Battery light is on n ijust put a new battery


Could be your alternator. Typically the battery light goes on only where there is a failure in the charging system. The batter has no built in feature to trigger a light fault. Go by any sears, autozone, parts supplier and they can test your charging system. It does not cost anything and give you an answer in 2 minutes. Also, if your car is putting out less than 13 volts while running you have a charging issue. That will drain the battery.

Feb 27, 2015 | 2004 Ford Explorer Sport Trac

1 Answer

95 ford explorer battery keeps dying when it sits ...new battery ...alternator is good got new battery 2 wks ago started fine now dying out


get a12 volt test light (autozone or any part store) . disconnect negative battery. connect light between negative terrminal of batteryand negitive cable if light lights something is useing battery power remove bulbs lighting hood and trunk until test light does not light disconect anything electrical until the test light goes out. if you disconnect alternater and it goes out replace alternator. if this was helpful please leave good feed back

Apr 13, 2013 | 1995 Ford Explorer

1 Answer

97 ford explorer battery alternator and battery just replaced. Engine light is on and 4w drive lo and high lights keep blinking, what's wrong?


might have a bad o2 sensor wich is tripping your check engine light and a vacuum leak wich is causing your 4lo 4 high light to blink

Nov 02, 2009 | 1997 Ford Explorer AWD

3 Answers

My battery light won't go off even though i've had the alternator tested and installed brand new battery


well; on your car, the alternator has an internal regulator. have you checked any wires or harnesses that ran off the battery? And see if you may have a cut place on your cables, or if one has come loose from the ground.

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1 Answer

2003 ford explorer battery light on


Are you sure the alternator isnt "over" charging? if not, you may have a "loose" connection somewhere with the cables, or a malfunction in the dash cluster. Also, are you positive the battery is forsure good?

May 27, 2009 | 1996 Ford Explorer

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