Battery light

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Aug 5, 2010 | 05:51 PM

mgf250

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Joined: May 2007

Posts: 38

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From: Ulster County, NY

Battery light

I just had an instance where the red battery warning light started to show on the dash. I checked the battery and found that the indicator was showing red. I checked the water and added some, then tried charging the battery. After 4 hours of charging it didn't move much so I decided to replace the battery. The alternator was putting out about 14 volts so the battery was really dead plus showed that the alternator seems to be ok.

After replacing the battery, all seemed good except that the red warning light is still showing.

Any ideas?

Aug 5, 2010 | 08:27 PM

F350-6

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Joined: Mar 2007

Posts: 26,966

Likes: 50

From: Texas

Put a meter on the alternator and watch the voltage output. Usually when the dash light comes on it's an alternator issue.

Aug 5, 2010 | 08:29 PM

senix

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Joined: Aug 2008

Posts: 37,383

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From: Frederick, MD

You may have had two issues going on here. If no voltmeter then you can take it to napa or autozone and they have a tester they can hook up and load test it for you.

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