Notices
1999 - 2003 7.3L Power Stroke Diesel  
Sponsored by:
Sponsored by: DP Tuner

Helppppppppp Charging problems...:(

Thread Tools
 
Search this Thread
 
Old Apr 8, 2009 | 11:29 AM
  #1  
PsD007.3's Avatar
PsD007.3
Thread Starter
|
Senior User
Joined: Jan 2009
Posts: 458
Likes: 0
Helppppppppp Charging problems...:(

ok just tested the battery's when truck is not running they tested at 12.75 then i started truck and tested and turned on highbeams, and heater on high and both tested at 12.36, when i test the wire on the back of the alternator it also is reading 12.65..soo whats wrong here guys??? alternator and battery's are both brand new about 1hr old...
<!-- / message --><!-- sig -->__________________
 
Reply
Old Apr 8, 2009 | 11:41 AM
  #2  
12ozd's Avatar
12ozd
Posting Guru
15 Year Member
Joined: Aug 2008
Posts: 1,845
Likes: 1
From: No.Va.
Club FTE Silver Member

Sure sounds like an alternator to me.

Did you get a reman? I have installed many "new" bad alternators.

Or you have a very high current draw. (unlikely w/ what you said you had on)

Did you wait for the glow plugs to complete their cycle?

They typically stay on for a short time after the light goes out.

Also, what happens when you elevate the idle?
 
Reply
Old Apr 8, 2009 | 11:43 AM
  #3  
PsD007.3's Avatar
PsD007.3
Thread Starter
|
Senior User
Joined: Jan 2009
Posts: 458
Likes: 0
its a reman alternator and had it tested before i put it on in autozone and it passed on there bench tester and i did this test after i had the truck running for about 5 minutes elevating the idle it stays the same...what else in this system could it be??? this sux
 
Reply
Old Apr 8, 2009 | 11:52 AM
  #4  
12ozd's Avatar
12ozd
Posting Guru
15 Year Member
Joined: Aug 2008
Posts: 1,845
Likes: 1
From: No.Va.
Club FTE Silver Member

Belt good condition,proper tension?

Pulley on tight?

Personally,If it were me,I would get another alternator.

I realize autozone tested it and it was fine,I don't have a lot of confidence in that.

I would not get an autozone one myself.

Try a different one, if that dosen't fix you up,.

IIRC thats about it for the charging system on these trucks.
 
Reply
Old Apr 8, 2009 | 11:53 AM
  #5  
mndiesel's Avatar
mndiesel
Postmaster
Joined: Jan 2007
Posts: 3,418
Likes: 1
From: Circle Pines
mine had the same reading and it was the diode that was bad in the altenator.
 
Reply
Old Apr 8, 2009 | 01:02 PM
  #6  
PsD007.3's Avatar
PsD007.3
Thread Starter
|
Senior User
Joined: Jan 2009
Posts: 458
Likes: 0
i think i found what it was the loom of wires that run down to the starter were what looked to be rubbed through on the metal battery tray and shorting out, and i moved it and my volts shot up to 14.3 i'm guessing that was my problem...would that cause the alternator to not put out though??
 
Reply
Old Apr 8, 2009 | 01:13 PM
  #7  
12ozd's Avatar
12ozd
Posting Guru
15 Year Member
Joined: Aug 2008
Posts: 1,845
Likes: 1
From: No.Va.
Club FTE Silver Member

If you have a bare wire touching metal,that would be a dead short and a very high draw,however,if thats the case,you're lucky you didn't have a complete meltdown/battery explosion.

I'm assuming a cable,otherwise it would have been fuse protected.

If you isolate the wire,and it's now charging,you're good to go.
repair / replace .
 
Reply
Old Apr 8, 2009 | 01:19 PM
  #8  
PsD007.3's Avatar
PsD007.3
Thread Starter
|
Senior User
Joined: Jan 2009
Posts: 458
Likes: 0
yea i wire tied it up out of the way idk why that happened i'm guessing over time it just kept rubbing the metal withe the motor vibration and wore a small bare spot
 
Reply
FTE Stories

Ford Trucks for Ford Truck Enthusiasts

story-0

Top 10 Ford Truck Tragedies

 Joe Kucinski
story-1

AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make

 Brett Foote
story-2

Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!

 Michael S. Palmer
story-3

Ford's 2001 Explorer Sportsman Concept Looks For a New Home

 Verdad Gallardo
story-4

10 Best Ford Truck Engines We Miss the Most!

 Joe Kucinski
story-5

2026 Shelby F-150 Off-Road: Better Than a Raptor R?

 Brett Foote
story-6

2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!

 Michael S. Palmer
story-7

10 Most Surprising 2026 Ford Truck Features!

 Joe Kucinski
story-8

Top 10 Ford Trucks Coming to Mecum Indy 2026

 Brett Foote
story-9

5 Best / 5 Worst Ford Truck Wheels of All Time

 Joe Kucinski
Old Apr 8, 2009 | 01:26 PM
  #9  
superduty4x4's Avatar
superduty4x4
Hotshot
20 Year Member
Liked
Loved
Community Favorite
Joined: Jul 2003
Posts: 12,177
Likes: 40
From: Newport, WA
Originally Posted by PsD007.3
yea i wire tied it up out of the way idk why that happened i'm guessing over time it just kept rubbing the metal withe the motor vibration and wore a small bare spot
I would buy some split loom or heater hose that is big enough to run the battery cable through to protect it, then wire it up away from the batt tray. You got lucky that you didn't have more problems, like a burned up truck!
 
Reply
Old Apr 8, 2009 | 01:31 PM
  #10  
PsD007.3's Avatar
PsD007.3
Thread Starter
|
Senior User
Joined: Jan 2009
Posts: 458
Likes: 0
yea tell me about it, i mean i'm guessing thats what it was i moved the wires away from the battery tray and my volts shot up to 14.3 soo that be my guess...
 
Reply
Old Apr 8, 2009 | 01:32 PM
  #11  
superduty4x4's Avatar
superduty4x4
Hotshot
20 Year Member
Liked
Loved
Community Favorite
Joined: Jul 2003
Posts: 12,177
Likes: 40
From: Newport, WA
I would agree... that dead short was not doing you any favors.
 
Reply
Old Apr 8, 2009 | 01:52 PM
  #12  
PsD007.3's Avatar
PsD007.3
Thread Starter
|
Senior User
Joined: Jan 2009
Posts: 458
Likes: 0
ok i'll keep you guys updated thanx alot
 
Reply
Old Apr 8, 2009 | 02:02 PM
  #13  
SpringerPop's Avatar
SpringerPop
Hotshot
Veteran: Air Force
20 Year Member
Liked
Community Favorite
Joined: Jan 2002
Posts: 17,988
Likes: 207
From: La La Land
Club FTE Silver Member

Got any photos detailing exactly where this problem occurred?

All of our trucks are almost identical to yours and could develop the same problem.

We need to know where to inspect.

Thanks,

Pop
 
Reply
Old Apr 8, 2009 | 02:06 PM
  #14  
PsD007.3's Avatar
PsD007.3
Thread Starter
|
Senior User
Joined: Jan 2009
Posts: 458
Likes: 0
i could take a pic but i suck at uploading figuring out how would take forever, i'll try to explain, ok on the passenger battery,, if you follow the positive wire it will drop down over the rear corner of the battery if you follow it down you will see the corner of the battery tray, thats right where mine was rubbing...
 
Reply
Old Apr 8, 2009 | 03:41 PM
  #15  
rbaker6336's Avatar
rbaker6336
Post Fiend
Joined: Feb 2007
Posts: 7,191
Likes: 4
From: Blairsville,Ga
Originally Posted by PsD007.3
i think i found what it was the loom of wires that run down to the starter were what looked to be rubbed through on the metal battery tray and shorting out, and i moved it and my volts shot up to 14.3 i'm guessing that was my problem...would that cause the alternator to not put out though??
You seem to have found the problem,but I would check the wire a bit closer to see if it was rubbed or burned to where you may have a open circuit,by moving the wire you may have caused a temporary reconnection
 
Reply



All times are GMT -5. The time now is 05:44 AM.

story-0
Top 10 Ford Truck Tragedies

Slideshow: Top 10 Ford truck tragedies.

By Joe Kucinski | 2026-05-18 19:34:33


VIEW MORE
story-1
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make

And it might be even better than that.

By Brett Foote | 2026-05-18 19:26:42


VIEW MORE
story-2
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!

Slideshow: Does lowering an F-150 Lobo RUIN the ride quality?

By Michael S. Palmer | 2026-05-18 19:20:37


VIEW MORE
story-3
Ford's 2001 Explorer Sportsman Concept Looks For a New Home

Slideshow: Ford's bizarre fishing-themed Explorer concept has resurfaced after spending decades largely forgotten.

By Verdad Gallardo | 2026-05-12 18:07:46


VIEW MORE
story-4
10 Best Ford Truck Engines We Miss the Most!

Slideshow: The 10 best Ford truck engines we miss the most.

By Joe Kucinski | 2026-05-12 13:09:47


VIEW MORE
story-5
2026 Shelby F-150 Off-Road: Better Than a Raptor R?

Slideshow: first look at the 810 hp 2026 Shelby F-150 Off-Road!

By Brett Foote | 2026-05-12 12:50:07


VIEW MORE
story-6
2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!

Slideshow: Everything You Need to Know about the 2027 Super Duty Carhartt Package!

By Michael S. Palmer | 2026-05-07 17:51:06


VIEW MORE
story-7
10 Most Surprising 2026 Ford Truck Features!

Slideshow: 10 most surprising Ford truck options/features in 2026.

By Joe Kucinski | 2026-05-05 11:17:22


VIEW MORE
story-8
Top 10 Ford Trucks Coming to Mecum Indy 2026

Slideshow: Here are the top 10 Fords coming to Mecum Indy 2026.

By Brett Foote | 2026-05-04 13:49:49


VIEW MORE
story-9
5 Best / 5 Worst Ford Truck Wheels of All Time

Slideshow: The 5 best and 5 worst Ford truck wheels of all time

By Joe Kucinski | 2026-04-29 16:49:01


VIEW MORE