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Discussion Starter · #1 ·
Hi All, I am new to this I am great at looking up info but I am currently stumped and would love any help I can get, I am a car enthusiast I build hot rods in my shop however Diesel stuff is newer to me.

I have a 2004 F350 with the 6.0L in it today I was turning it around on the road in front of my house and the dash died on me so I shut the truck off and went to start it up and just clicking like the batteries were dead so i checked with multi meter and sure enough they are just under 12 volts, so I had my Dad jump me off his denali and it took a bit but got it started unhooked the cables not even 2 min later it just dies, so again I jump it this time took much longer however when you put the key into the on position for the glow plug the dash lights freak out flashing in and out like they are shorting out. Any how got it started again and was hustling to try and get it back into the drive way, again all lights went dead, windows, gauges everything, and then 20 seconds later truck dies again. What I dont understand is why is it dieing, and also when a battery is low usually the lights are dim they dont go crazy flickering. (they dont even flicker all at once some go and then others go, and the gauges go all weird fuel reads full then empty)

Im lost and would love any help.

Thanks!
 

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Sounds like an internal regulator inside your alternator.
 

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Discussion Starter · #3 ·
Thats what I was thinking too, however with the diesel engine you dont need battery for ignition to keep running just for initial start right? so even a lower charge battery should sustain some level of running, why would it keep dieing out?

Or would odd output volts by the alternator effect other aspects that would keep the truck running?

Thanks,
 

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Discussion Starter · #4 ·
Do you think if it was the alternator or the voltage regulator in the alternator that it could be affecting the alarm and kicking in the remote start demoralizer shutting the truck off?

Again thanks
 

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Thats what I was thinking too, however with the diesel engine you dont need battery for ignition to keep running just for initial start right? so even a lower charge battery should sustain some level of running, why would it keep dieing out?

Or would odd output volts by the alternator effect other aspects that would keep the truck running?

Thanks,
Depends how good his FICM is or was. Below 12 volts that thing does not work well.

I think you have a warped cell in one of the batts.
Causing a dead short which will take everything out and not take a charge. Get the batts out or disconnect them completely then try a jump.
 
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