Battery Light - Ford Powerstroke Diesel Forum
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post #1 of 22 Old 08-07-2012, 03:54 PM Thread Starter
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Battery Light

I started my truck today and the battery light came on. Let it run 15 minutes then shut it off and restarted it about 5 times without any problems. What all should I be looking for?


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post #2 of 22 Old 08-07-2012, 04:09 PM
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F250 '95 Powerstroke Battery Light Stays On

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Originally Posted by tucker0104 View Post
I started my truck today and the battery light came on. Let it run 15 minutes then shut it off and restarted it about 5 times without any problems. What all should I be looking for?
I have the same problem & 2nd this question needing to be answered, mine has almost alway gone on for no apparent reason, AND the ABS light although there's break fluid, etc.

Any info is good info on these matters.
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post #3 of 22 Old 08-07-2012, 04:57 PM Thread Starter
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I am fine if it is just the battery light for no reason. I just don't want to be driving down the road and all of a sudden I break down.


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post #4 of 22 Old 08-07-2012, 05:07 PM Thread Starter
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It seems like the batteries are staying charged which means the alternator is working. Batteries are only about 6 months old. Could grounding straps cause a battery light?


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post #5 of 22 Old 08-08-2012, 03:50 PM
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Time for an Alt. When the Batt. light is on try tapping the Alt. housing. Might be a bad ground in/on the ALt. Food for thought:


Matt
'97
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-BANKs: downpipe, full exhaust, gauges, intercooler
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post #6 of 22 Old 08-08-2012, 05:00 PM Thread Starter
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But there seems to be power. No way the alternator is bad but the batteries are staying at 14v when running.


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post #7 of 22 Old 08-08-2012, 05:07 PM
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Tap on the housing to see if it's a bad ground issue in the alternator. Otherwise inspect the LG/R wire from the alternator back to the light.

Matt
'97
-Bean's: 160/100 (FF Injectors), 2/ 6-POS chips (TW & Beans tunes), Overboost controller, E-Fuel
-BANKs: downpipe, full exhaust, gauges, intercooler
-Irate: T-4 kit, IC pipes, 3" Irate Plenums, BASB Turbo
-Stage II trans.
-Mag-Hytec trans. and pumpkin covers
-6637, CCV, IDM, 6.0 Fan, 49-Federal PCM swap, MAP line Mod
-370 Amp alt., 40k trans cooler, ADRENALINE PUMP
-twin on-board air w/ 10 gal. tank

-Oh, and a 2015 F350 6.7L DRW 4x4


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post #8 of 22 Old 08-09-2012, 05:30 AM Thread Starter
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I will check it today. Thanks for the help. Where can the wire be found on the alternator?


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post #9 of 22 Old 08-09-2012, 05:32 AM
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My cousins truck did this, pulled the alt off and took it to get tested. Tested bad and we replaced it. The light went away after that.


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-Brian

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-300k+ miles and still strong
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post #10 of 22 Old 08-09-2012, 05:49 AM Thread Starter
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Any recommendations on new alternator brands?


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