Question about 2005 Ford Explorer

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Charging system light on

My charging system light is on in my explorer what could be the problem. Car is running fine.

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Check the connections on the back also check you have at least 12.85 volts at the battry the altanator could be on the way out

Posted on Apr 21, 2009

  • martin davidson Apr 21, 2009

    check the connections on the back also check you have at least 12.85 volts at the battry the altanator could be on the way out



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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

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Why is battery light lit on dashboard constantly ford explorer 2004

Usually when the battery light is constantly on when running the alternator is not charging properly or the wire from the alternator to the battery is damaged. If your battery is good the car may run for quite some time if headlights and heavy drain accessories are not used. Suggest you have the system checked at a local chain auto parts store like Advance Auto who can tell you if your car alternator is charging or not.

Jun 26, 2014 | 2004 Ford Explorer

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was the alternator bench tested? or tested on the car? if the alternator tests good off the car and the wiring has been tested, the ground may be loose or disconnected.

Apr 13, 2014 | 2004 Ford Explorer

1 Answer

1998 corolla runs fine but if you turn the headlights on or use the signal light the motor dies

the battery voltage is dropping below 10vdc.

use a voltmeter , walfart $10

see it drop below 13.3vdc? running?, that means the Alternator

system is messing up, if true, ask for help.

the head lights and heater fan suck about 20 amps on,

and a weak battery is now overloaded.

or main power feed to the ignition is corroded., even

simple battery lugs corroded. cause this.

but the Voltmeter never lies

one easy trick is use said meter at the cig lighter socket

turn key on, see 12.6v (charged battery is that)

then HL and fan, still near 12v?

see charge lamp on dash glow? it must. if not fix that.

then start engine, now it must be 13.3v to 15vdc or the

charge system is failing,

is the charge lamp on , running engine, fix that next.

(battery= charge lamp)

the alternator belt must not be loose

and engine RPM hot above 800RPM,

Feb 17, 2014 | Toyota Corolla Cars & Trucks

4 Answers

My 2005 ford explorer the charging system light

I had the same problem. On the picture you see the slution, check this plug on a good connection !

Feb 02, 2011 | 2005 Ford Explorer

2 Answers

Went to start my car - dead - the lights inside work - this happened once before checked the battery it is good and cleaned the battery post and cables and it worked fine- could it be the altinator?

How do you know the battery is good? If you are sure the battery is good (not sure how you determined this), then you should check the charging system. You can do this by checking battery voltage with engine off, then again with engine running. Voltage should be 1 - 2 volts higher with engine running if charging system is working. This is just a quick check, but will definitely identify a charging system that is not working at all.

Aug 21, 2010 | 2002 Ford Explorer Sport Trac

1 Answer

Check engine light stays on all the time, but car runs fine?

Well, the engine management system has something wrong. Pull the codes and explore the code(s) given.
Car running fine with the check engine indication is not unusual. Something is wrong, get after it.

Aug 01, 2010 | 1999 Subaru Legacy

1 Answer

My 2005 ford explorer check charging system warning light

if charging light is on w/ engine running,the fault could be the alternator or another component of the charging system.remove, clean and tighten battery post connections to check for alternator output,use a volt meter or multi-tester set to 50 Volts DC,w/ tester on battery terminals it should read 12 volts W/ engine off;13 to 14 volts w/engine running.if voltage increases when alternator is spinning,suspect battery

Sep 28, 2009 | 2002 Ford Explorer

1 Answer

Check charging system

Do you have gauges on this car also?
If so, you may have a problem with what is called a "current shunt" resistor. This will prevent the car from recharging the battery....accordianman

Jul 22, 2008 | 2005 Ford Explorer

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