Question about 2004 Ford Explorer
Although your car may be starting and running now, it may not be in the near future. You need to check out a few things to get to the bottom of it so you can fix the problem before it REALLY becomes a problem. The battery light in your dashboard comes on when there is a problem in the battery's charging system. The alternator is what makes that light come on.Make sure your fan belt is still on your vehicle. If it's not there, your alternator isn't charging your battery at all.
If the belt is there, it could be slipping which would cause the alternator to not be charging properly. If you check the alternator with a digital voltage meter with the car running, it must read 13.6 volts or higher (up to 14.2 volts) for the alternator to be charging properly.
If the voltage meter says anything under 13.6 volts, say 13 volts, then there is still a problem even though it is still charging, it’s not charging properly.
So you may have a voltage regulator problem. The Voltage Regulator is the device that sits in between the alternator and the battery. Its purpose is to allow current from the alternator to reach the battery when the battery needs it. It opens when the battery is full to prevent overcharging and closes when the battery is drained to allow it to charge. Try hooking up your volt meter to the battery and turning on the lights and fan with the car running. Then watch to see if the meter increases to around 15 volts and then drops to around 13 volts. If you are not getting this fluctuation, you may need to replace your voltage regulator.
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Posted on Jul 12, 2010
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Posted on Jan 02, 2017
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