When engine is off the volts drop to about 12.
2012 ford f150 battery light comes on.
My 2011 f150 5 0 has a battery light that turns on after about 30 seconds of running went to autozone and they check the charging system.
My mechanic says that the alternator must be charging but why is the light on.
If the battery light comes on while the engine is running and the vehicle is being driven this indicates a problem with the charging system.
Part 1 of 3.
When you first turn on your car with the engine off the battery light will illuminate and this is normal.
Asked by guruh7wcp aug 10 2019 at 04 25 pm about the 2012 ford f 150 xl lb question type.
Every thing was fine until today when the battery light came on.
2009 2014 f150 2013 battery light on i bought a 2013 f150 last saturday.
They told me my battery was bad so i replaced it.
I had the battery light come on my f 150 i have put a brand new battery in and all is fine.
However the battery indicator light has come on just for a quick moment today and cleared when i accelerated.
Assuming that the voltmeter is correct and reads 13 5v to 14 5v what.
Asked by bob nov 03 2016 at 12 02 am about the 2008 ford f 150 xl supercrew sb.
The light was still comes on then they told me my alternator was bad because it was only charging at 13 5v they were not able to find an alternator for it.
React to the battery light.
The battery light is on but the voltmeter says 13 5 to 14 5 volts depending on the engine revs.
It had battery corrosion on the positive side of the battery and on the battery cable end.