Notices
6.0L Power Stroke Diesel 2003 - 2007 F250, F350 pickup and F350+ Cab Chassis, 2003 - 2005 Excursion and 2003 - 2009 van

Low charging state WHY

Thread Tools
 
Search this Thread
 
Old Aug 18, 2012 | 04:35 PM
  #16  
ACEN's Avatar
ACEN
Thread Starter
|
Junior User
Joined: Mar 2012
Posts: 59
Likes: 0
Sorry I couldnt get back sooner, 1st, those grounds are a PITA to get to. 2nd the battery connect cable has god continuity and resistance. I checked alternator at the alternator 13.6 then at the batteries12.6 on drivers side and 12.5 on pass side. Took alternator off had checked at oriellys 14.5 low side and 16.1 high side. As berick mentions could alternator be weak on the truck but test fine?? Any help appreciated, I just dont get why im not getting 14+ with truck running.
 
Reply
Old Aug 18, 2012 | 05:52 PM
  #17  
ACEN's Avatar
ACEN
Thread Starter
|
Junior User
Joined: Mar 2012
Posts: 59
Likes: 0
Now I have a GPCM code, and GP 1 and 2 code. ????
 
Reply
Old Aug 18, 2012 | 06:14 PM
  #18  
mhatlen's Avatar
mhatlen
2006 Bullet-Riddled 6.0
Joined: Sep 2011
Posts: 651
Likes: 5
From: Sac River Delta Ca.
Club FTE Silver Member

If your batteries are full up you are not going to get the 14 volts. Do you have a amp guage that you can use? If so here are some Ford specs on the alt:

@Idle 13.7 volts @60 amps
@2000 rpm under a load: 13.4 volts@90 amps

This is where you should be give or take of coarse.

For whatever reason the alts in these trucks stay in the 13+volt range it will hit 14volts if your batteries are down enough.
 
Reply
Old Aug 18, 2012 | 10:42 PM
  #19  
BLADE35's Avatar
BLADE35
Hotshot
15 Year Member
Liked
Joined: Apr 2010
Posts: 19,074
Likes: 247
From: Saratoga Springs,UT
The passenger side battery is where the alternator and GPCM get their B+


whats the DTC you get???


Not Many Alts will hit 14s volts average is 13.3-13.8volts still ok


If you want to see 14+ volts then DC Power is what you want
 
Reply
Old Aug 18, 2012 | 11:08 PM
  #20  
berick's Avatar
berick
Laughing Gas
15 Year Member
Joined: Feb 2008
Posts: 754
Likes: 2
From: AB,Can
Originally Posted by BLADE35
The passenger side battery is where the alternator and GPCM get their B+


whats the DTC you get???


Not Many Alts will hit 14s volts average is 13.3-13.8volts still ok


If you want to see 14+ volts then DC Power is what you want
+1...... My stock alternator only put out around 13.2.... my DC puts out between 14.2 - 14.7.... hasn't fell below 14 yet.
 
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Coccyx
Pre-Power Stroke Diesel (7.3L IDI & 6.9L)
14
Nov 15, 2017 11:10 AM
hrkdrivr
6.0L Power Stroke Diesel
7
Feb 12, 2014 04:15 PM
8lug
6.0L Power Stroke Diesel
6
Aug 24, 2012 05:50 AM
bkvanbek
6.0L Power Stroke Diesel
24
Jan 10, 2011 06:35 AM
02GrayPowerStroke
1999 - 2003 7.3L Power Stroke Diesel
23
Jan 31, 2008 05:03 PM




All times are GMT -5. The time now is 01:40 AM.

story-0
10 Ways Ford is LOSING to the Competition

Slideshow: 10 ways Ford is losing to the competition

By Joe Kucinski | 2026-06-15 09:52:01


VIEW MORE
story-1
Top 6 Best Deals Available on New Fords & Lincolns Right Now

Some great targets in today's expensive world.

By Brett Foote | 2026-06-15 09:35:19


VIEW MORE
story-2
This Hennessey Takes the Expedition Tremor's Off-Roading Capability to the Next Level

Slideshow: The VelociRaptor Expedition gains a lift, upgraded suspension, Brembo brakes, and trail-ready equipment while retaining the stock 440-horsepower EcoBoost V6.

By Verdad Gallardo | 2026-06-12 11:01:55


VIEW MORE
story-3
Top 10 Fords at 2026 Carlisle Ford Nationals

Slideshow: Top 10 Fords at 2026 Ford Nationals

By Joe Kucinski | 2026-06-09 11:10:08


VIEW MORE
story-4
3 Best / 3 Worst Parts of Modern Ford Ownership

Based on years of owning multiple modern Ford products.

By Brett Foote | 2026-06-09 10:53:36


VIEW MORE
story-5
10 Amazing Upgrades That Solve Common Ford Truck Owner Headaches

SPONSORED: From muddy boots to rain-soaked cargo, these upgrades address some of the most common frustrations Ford truck owners face every day.

By Pouria Savadkouei | 2026-06-08 18:50:34


VIEW MORE
story-6
Every 2026 Ford Engine Explained

Here's everything you need to know about every Ford engine available for the 2026 model year.

By Brett Foote | 2026-06-05 12:58:01


VIEW MORE
story-7
10 Ugly Ford Trucks That We Still Kinda Love

Slideshow: 10 ugly Ford trucks that we still kinda love.

By Joe Kucinski | 2026-06-03 09:51:16


VIEW MORE
story-8
10 Things Every Truck Owner NEEDS (2026 Edition)

Slideshow: the best gifts for dads & grads

By Michael S. Palmer | 2026-06-03 15:43:58


VIEW MORE
story-9
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath

Slideshow: Called the Fortress, the 850-horsepower pickup combines Raptor underpinnings with military-inspired features, survival equipment, and a starting price of $285,000.

By Verdad Gallardo | 2026-06-03 11:38:36


VIEW MORE