Overharging question - Ford Powerstroke Diesel Forum
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post #1 of 3 Old 03-04-2013, 03:34 PM Thread Starter
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Overcharging question

Back story. This fall Late novermber my truck died. Thought it was the CPS, changed the CPS and did not start. Looked all all other voltage and everything seemed good. Didn't need the truck so said screw it and it sat for almost 2 months before I took it to a buddies shop who changed the "new" CPS and it started right up. Pissed me off I figured it out and bought a bad "new" CPS.


So flash forward 4 weeks. The batteries were dead and charged them up. Shes been running good but the other day I went out and dead. Charged them up. Ran good again and dead, not holding a charge. Took it to Ford because they are prorated and the Tech said that its because the altenator is over charging.

3 years ago the excite wire on the alt went dead. Couldn't find the break in the wire so hotwired my own excite wire with a fuseable link. Haven't had a problem since. The truck charges at 14v when it's running.

I think it's the fact that I let the batteries freeze for 8 weeks instead of it over charging. They want to replace the batteries but also $400 for a new wireing to the Alternator.

Question: If the Alternator is pushing 14v then its clearly not overcharging, correct?

Thank you,
Drew

2000 F-350
7.3L 6spd 71xxx miles
Zero Mods 3/01/2008 - 3/25/08
Zoodad and Foil Delete 3/26/08
DIY Intake 6/25/08
4" TB exhaust 7/01/08
TW 6pos chip 7/27/08
HP oil crossover 7/27/08
'05-'07 Front end conversion 1/8/10


Last edited by UnlimitedLove; 03-04-2013 at 04:51 PM.
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post #2 of 3 Old 03-04-2013, 04:39 PM
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Yea, 14v can't hurt the batteries...

What do you mean they "froze"? In the truck? How cold? How dead were they?
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post #3 of 3 Old 03-04-2013, 04:53 PM Thread Starter
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Quote:
Originally Posted by NoRalPh View Post
Yea, 14v can't hurt the batteries...

What do you mean they "froze"? In the truck? How cold? How dead were they?
No trickle charge and freezing temps. They are also 4 and 3 years old.

I'm going to replace the batteries I think and call it a day and probably find that break in the line and do it correctly in the future when it's warm.

This has been "rigged" for almost 3 years so its about time I fixed it correctly. I'm sure it was just the easy target for the Ford mechanic.

2000 F-350
7.3L 6spd 71xxx miles
Zero Mods 3/01/2008 - 3/25/08
Zoodad and Foil Delete 3/26/08
DIY Intake 6/25/08
4" TB exhaust 7/01/08
TW 6pos chip 7/27/08
HP oil crossover 7/27/08
'05-'07 Front end conversion 1/8/10

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