New guy with a electrical question - Ford Powerstroke Diesel Forum
 
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post #1 of 6 Old 01-09-2013, 07:40 AM Thread Starter
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New guy with a electrical question

I recently bought a 96 250 crew cab long box with dual fuel tanks with 230,000 on it. This is my first diesel btw and I love it so far. The problem I am having is with my charging system. My battery light keeps flickering. The guy I bought it from replaced the alternator not to long before I bought it. Now some times the light will flicker on a smooth road or a bumpy road. It will also flicker when I'm jus sitting there idling. (Which means the problem is close to the engine I'm assuming) if it starts going crazy if I get on the gas and accelerate hard the light goes off.

The truck did quite on me one day after the light was flickering for a whole and I went and bought a voltage gauge because the stock on doesn't work. I am trying to figure out where to start diagnosing this. Ive had the truck running with my wife in it and I've wiggled everywhere and harness I could find and the light didn't illuminate at all. Am I looking in the wrong place? I also had autozone test the alternator on the truck and they said they couldn't guarantee the accuracy because of the dual batteries.

I'm guessing I'm looking for a short or a bad ground somewhere. I'm just not sure if its under the hood.

Thanks for the help.
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post #2 of 6 Old 01-09-2013, 08:06 AM
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Here is the charging schematic. Have you isolated the Batteries and tested them individually? :


Matt
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post #3 of 6 Old 01-09-2013, 08:21 AM Thread Starter
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Thanks for diagram. And I have not tested both batteries individually.
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post #4 of 6 Old 01-09-2013, 02:19 PM
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The single wire on the top of the alternator can be disturbed by the heater hose or a somewhat loose connection .I think it's called the "stator " wire

1996 F250 PSD Crewcab,auto,D 60 swap,3" dp, DIY air 4X4 Centurion
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post #5 of 6 Old 01-09-2013, 02:51 PM Thread Starter
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Quote:
Originally Posted by Chop View Post
The single wire on the top of the alternator can be disturbed by the heater hose or a somewhat loose connection .I think it's called the "stator " wire
Looking at that the hose is touching it and it is a little loose although when wiggle it the light still dosent come on.
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post #6 of 6 Old 01-13-2013, 01:55 PM
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i had the same problem, the white wire in the pigtail on the top of alternator was loose..it was loose in the pigtail...


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