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1987 - 1996 F150 & Larger F-Series Trucks 1987 - 1996 Ford F-150, F-250, F-350 and larger pickups - including the 1997 heavy-duty F250/F350+ trucks

Battery light on

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Old Dec 8, 2016 | 09:26 PM
  #1  
racerdon's Avatar
racerdon
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5th Wheeling
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Battery light on

Hi all, I just had head gaskets replaced on my 1997 F250 Heavy Duty, 5.8
When we started it, the battery light comes on and stays on, even though by testing the battery is charging, and the dash gauge shows its charging. The only wiring we disturbed was the positive post. We jus set the alt. off to the side.
Any ideas?
 
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Old Dec 8, 2016 | 10:24 PM
  #2  
wtroger's Avatar
wtroger
Cargo Master
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Joined: May 2001
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First use a volt meter and check the voltage at the battery if it isn't over 13 volts then it isn't charging. One of two things either green with red striped wire has a short to ground or the regulator in the alternator is bad. Unplug the three wire connector turn the key to run and see if the light stays on if it does the there is a short in that wire. If it is off then the regulator is suspect.
 
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