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2006 f250 charging problem

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Old Sep 28, 2013 | 09:05 PM
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2006 f250 charging problem

Hi i have a problem with my f250, i bought 2 new batteries and check the alternator and its fine but i notice it wasnt charging, i dont know whats happening, only charges 12.5v instead of 13.5 or 14v, does the f250 have any alternator fuse? i cant find it please help!!!
 
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Old Sep 28, 2013 | 09:41 PM
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Did you check the voltage before or after the glow plugs cycled off?
 
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Old Sep 28, 2013 | 09:43 PM
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truck in idle it get 12.3v or 12.5v is not charging
 
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Old Sep 28, 2013 | 09:52 PM
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Originally Posted by lethal01
truck in idle it get 12.3v or 12.5v is not charging
Glows on or off? Thet don't charge for a couple minutes after starting, glows take 200 amps.
 
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Old Sep 28, 2013 | 09:57 PM
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Whats the Voltage after 3-4 minutes?? Same??

Any Battery Light???

Have you cleaned all the Cables even the grounds Both ends??


Whats the DVM say at the Alternator
 
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Old Sep 28, 2013 | 10:03 PM
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i knew something was wrong because i got low battery in the morning and i cant turn it on the truck, i charged it up and went to the battery shop and we test the battery it was good, and we test the voltage and wasnt charging it was on 12.3v or 12.5v
 
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Old Sep 28, 2013 | 10:04 PM
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no battery light, all cables clean
 
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Old Sep 28, 2013 | 10:07 PM
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i test the alternator and its working it charges at 14v but i dont know why when i installed it on the truck it charges only 12.3v....
 
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Old Sep 28, 2013 | 10:09 PM
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Originally Posted by lethal01

i knew something was wrong because i got low battery in the morning

Originally Posted by lethal01

no battery light, all cables clean



You Can't have it Both ways LOL

DOes it stay on Longer then Normal @ Startup ?? then go Off and Stay Off
 
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Old Sep 28, 2013 | 10:10 PM
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If you have a DVM we can check to see if the Alt is being commanded to Charge
 
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Old Sep 28, 2013 | 10:25 PM
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i turn on the truck, its on 12.3 or 12.5v only, it should be at 13.5 to 13.9v, thats why it discharge my battery, it was charging all the road from work to my house lol.... and the other morning the battery was death... today i went to the alternator shop to test the alt in a machine and it show 14v at max spin so the guy told me its good, but i dont know why when i put on the alt in the car why does not charge at 13v up , normally , it stays at 12.3v or less its not charging.....
 
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Old Sep 28, 2013 | 10:32 PM
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does the f250 have any alternator fuse or something like that ??? in other cars there is in the fuse box a fuse for the alternator !! but i was looking for it and i cannot find it....
 
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Old Sep 28, 2013 | 10:47 PM
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NO Fuse

Do you have a DVM??

 
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Old Sep 28, 2013 | 11:06 PM
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i dont have a dvm T_T
 
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Old Sep 28, 2013 | 11:08 PM
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then you dont think the wires could be burnt ??? it could be the wired? the red wire from the alt to batts?
 
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