Alternator? - Ford Powerstroke Diesel Forum

6.0L Electronics Discussion TV's, Radios, everything electric and NON-Performance.

 
LinkBack Thread Tools Display Modes
post #1 of 6 Old 07-18-2013, 10:46 AM Thread Starter
Member
 
Join Date: Jun 2013
Location: Yakima, Wa
Posts: 76
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
Alternator?

OK.

I monitor the batt. voltage on my truck with the Edge Insight. I normally start the truck and have about 12 volts (goes as low as 11.6 and as high as 12.8) for the fist 30 sec. to a minute then it pops up to 14.6-14.8. I always assumed this was the glow plugs and ignored it because the FICM was always 47.5-48 the whole time.

SO.

Today I took off for lunch and it was at 11.5-11.7 for about a minute then bumped up to 14.6-15.1 while I was driving but when I stopped at a light and was idling my voltage was at 12.3 to 12.8. This continued the whole time I was driving low voltage at an idle and going a little high at speed. I have a pretty good idea that the Alt is going out.

Here are my questions.

Anyone know of anything besides the alt that would cause this?
What alt are people using to replace the factory alt. I see many like to bump up to a 140 amp. but what brand?

2003 F-350 Super Duty, XLT, Crew Cab, Long box, SRW, 4X4, Automatic trans, 6.0.
ijones is offline  
post #2 of 6 Old 07-18-2013, 10:57 AM Thread Starter
Member
 
Join Date: Jun 2013
Location: Yakima, Wa
Posts: 76
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
Forgot to add that the FICM voltage is still @ 47.5-48.

Have seen the FICM voltage down to 47 once but that was a while ago before I replaced the battery's.

2003 F-350 Super Duty, XLT, Crew Cab, Long box, SRW, 4X4, Automatic trans, 6.0.
ijones is offline  
post #3 of 6 Old 07-18-2013, 11:23 AM
Compression Ignition Addict
 
JUGGS's Avatar
 
Join Date: Nov 2010
Location: Denton, TX
Posts: 511
Thanks: 5
Thanked 3 Times in 3 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
subscribing

2005 F250 Lariat CCSB/170k mi./6sp Handshaker

Don't Worry
Dieselsite coolant filter, CAT ELC, Bulletproofed and monitored by BPD

Be Happy
SCT SF3, 4" Flo Pro, 2.5" Readylift SST, 35" GoodYear Fierce Attitude M/T's
JUGGS is offline  
post #4 of 6 Old 07-18-2013, 11:47 AM
Premium Member
 
Join Date: Apr 2011
Location: Baton Rouge
Posts: 1,127
Thanks: 2
Thanked 3 Times in 3 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 1 reviews
Get your alternator load tested. When my alt went out, is was throwing a battery light.
Moto2four is offline  
post #5 of 6 Old 07-18-2013, 01:42 PM Thread Starter
Member
 
Join Date: Jun 2013
Location: Yakima, Wa
Posts: 76
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
I'm not getting any lights yet but it's defiantly not charging like it used to. I don't want to wait to long and screw up the FICM . I am going to load test the battery's as soon as I get a chance but they are less then 6 months old so I doubt they are the problem but will check anyway since It's easy. They want 100 bucks to test the alternator on the truck or will do it free if I pull it off. I may just have to pull it off and take it in.

2003 F-350 Super Duty, XLT, Crew Cab, Long box, SRW, 4X4, Automatic trans, 6.0.
ijones is offline  
post #6 of 6 Old 07-19-2013, 08:04 AM Thread Starter
Member
 
Join Date: Jun 2013
Location: Yakima, Wa
Posts: 76
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
All was normal on the drive home last night and on the way to work this morning. I will be keeping a close eye on it though.

2003 F-350 Super Duty, XLT, Crew Cab, Long box, SRW, 4X4, Automatic trans, 6.0.
ijones is offline  
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Ford Powerstroke Diesel Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in









Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome