battery light
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Junior User
Joined: Aug 2005
Posts: 69
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From: west jordan
battery light
I have a 03 f350, with the 6.0 turbo diesel. and the battery light wont shut off. we have had the recall done. and the alternator is brand new, and is charging. both batteries are good, and hold a full charge. but the light is always on. some times it will flicker, and even shut off. for a little bit. but if you hit a good bump it will be back on. I think that maybe I have a short some were, but can't find a wiring diagram for the charging system of that truck. and the ford dealer is not much help. they said to check the conecttions to the battery. they are tight and clean. any help would be great. 
Lead Driver
Joined: May 2003
Posts: 9,303
Likes: 48
From: Lyndonville, Vermont
The regulator in the primary alternator turns the light out as far as I know. I do know they do some technical stuff watching both batteries. Have someone watch the light while you wiggle the wires on the back of the alt's the small wires. On most systems the wire to turn off the light comes from the regulator..You could have a bad reg or like you said a bad connection..wiggle wires while someone is watching the light.
Take your tie off and your hippie chain when over the engine. LOL Good luck
Dick
Take your tie off and your hippie chain when over the engine. LOL Good luck
Dick
Posting Guru
Joined: Feb 2005
Posts: 2,295
Likes: 2
s/tie/necklace/
I've seen terminals get corroded and the corrosion actually travel down into the cables (under the insulation) where the real problem exists. Play around with the cables, flex them a bit (a "crunchy" feeling is bad), etc. to see what happens.
I've seen terminals get corroded and the corrosion actually travel down into the cables (under the insulation) where the real problem exists. Play around with the cables, flex them a bit (a "crunchy" feeling is bad), etc. to see what happens.
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