08 f250 battery light on with 14.06 volts charging. - Ford Powerstroke Diesel Forum
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post #1 of 3 Old 08-18-2014, 10:44 AM Thread Starter
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08 f250 battery light on with 14.06 volts charging.

Working on my wife's 08 f250. Battery light is on and won't go out. Throwing a code for alternator yet it puts out 14.06 volts and never drops below 13.88. Clear code and light pops back on. Swapped batteries with new ones from my other 08 which are 3 months old and no difference. Checked the battery terminals and cleaned everything up and still persists. Is it time for a new alternator? Checked with ae and spartan.

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post #2 of 3 Old 08-18-2014, 10:46 AM
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have you put a meter on the Alt?
check the flat plug on the top.

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post #3 of 3 Old 08-18-2014, 10:51 AM Thread Starter
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Checked at the batteries and got very close readings. Also checked for any kind of draw. Didn't get anything there either. Tried wiggling while it was running and no difference.Did feel a little warmer than I would like though.

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