Intermittent Battery Light
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Joined: Oct 2006
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From: Spicewood, TX
Intermittent Battery Light
Last 2 or 3 weeks, the battery light on the instrument panel has been coming on occasionally. It might stay on for 2 seconds - at other times maybe two minutes (or longer). Can't seem to find a pattern here.
A week ago the light stayed on all the way home from work (about 45 minutes).
I have not driven the truck for about a week.
Yesterday, I had to charge both “new” batteries sine each was down to about 5 volts. Not surprising if they're not charging since I have an inverter that runs 24/7 (I've pulled the fuse).
<O
></O>1. Cranked it up 30 minutes ago, checked voltage on both and found 12 volts only.
2. Checked Alternator output and initially no voltage.
3. Re-checked batteries and found 14.2 volts.
4. Re-checked alternator - found 14.2 volts
5. Opened the door to check if bat light was on – no light.
6. Rechecked the bats – “0” (zero volts)!
7. Rechecked the alternator – no voltage.
8. Checked the bat light – it was now ON!
9. Rechecked the bats – 14.2 volts
10. Rechecked the bat light – now OFF!
<O
></O>What the heck is going on? Alternator? Computer? Something else?
<O
></O>Thanks in advance to the forum.
<O
></O>Clif
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ten.mile
6.0L Power Stroke Diesel
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May 16, 2020 04:34 PM
2006, alternator, battery, diesel, duty, excursion, expedition, f250, ford, hd, intermitent, intermittent, light, ligth, ranger, super, superduty
