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If the battery light has been coming on and off on a 1999 Ford Expedition does it need a new alternator or just a new serpentine belt?


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2015-07-16 19:25:46
2015-07-16 19:25:46

I just had to replace my alternator and the battery light was coming on when I had slow engine speed (under 1000RPM)...It gave me little warning and completely failed after 20 miles, then the battery went dead and , of course, the engine stopped...

Replace the Alternator before you get stranded as what happened to myself...

check the connectors and wires first. make sure their clean and tight. if beltis tight it should be ok. have alternator tested.

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It could be a loose serpentine belt. Or if the alternator is going out either way its most likely a charging problem.

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Auto Zone will check your charging system for FREE. Go to any Auto Zone and have them check your Alternator / and charging system.

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Remove the serpentine belt and check the belt and pulleys for damage. While the belt is off, turn the alternator by hand listening for the noise.

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Yes. If the alternator is dead and you drive the vehicle, all the power is coming from the battery and it will eventually drain completely. Also, if a diode is shorted inside the alternator, that can drain a battery.

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The battery light coming on in your Town and Country minivan means that the alternator needs to be replaced. The alternator charges the battery and if it goes bad it will not charge the battery.


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