Electrical voltage issue - Ford Powerstroke Diesel Forum
Powerstroke.org is the premier Diesel Truck Forum on the internet. Registered Users do not see the above ads.
Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 04-29-2012, 01:33 PM
Compression Ignition Addict
 

Join Date: Nov 2008
Location: California
Posts: 4,260
Thanks: 0
Thanked 1 Time in 1 Post
Feedback Score: 0 reviews
Electrical voltage issue

My truck is an 06 f-350. My battery light will ficker randomly on rare occations. So I have been watching the voltage on the insight and it will touch the 12V range sometimes. I dont think it has touched 12.5V. I pulled the alternator off and that Passed. The batteries are good.
I then took the truck to autozone to have them test the vehicle and it came up with -Voltage regulator diode failure- Im not sure what that means.
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2  
Old 04-29-2012, 01:51 PM
Powerstroke Techie

 

Join Date: Aug 2010
Location: Sassamansville, Pa
Posts: 9,732
Thanks: 93
Thanked 189 Times in 152 Posts
Feedback Score: 3 reviews
IIRC, it means your internal voltage regulator is shot. When my upper alternator took a dump, it put out 12v, and only 14amps. After replacing the upper unit, 13.8v and 60-80amps at idle depending on the demand.
Reply With Quote Quick reply to this message
  #3  
Old 04-29-2012, 02:47 PM
Super Moderator


 

Join Date: Mar 2008
Location: Abingdon, Md.
Posts: 11,983
Thanks: 4
Thanked 31 Times in 16 Posts
Feedback Score: 3 reviews
Yup, regulator is internal to the alternator. Time to upgrade.
Reply With Quote Quick reply to this message
  #4  
Old 04-30-2012, 07:44 AM
Compression Ignition Addict
 

Join Date: Nov 2008
Location: California
Posts: 4,260
Thanks: 0
Thanked 1 Time in 1 Post
Feedback Score: 0 reviews
That is odd because I took it off to get tested 3 times and it passed. I will start searching for a new alternator. thanks guys!
Reply With Quote Quick reply to this message
  #5  
Old 04-30-2012, 08:07 AM
Premium Member
 

Join Date: Jan 2012
Location: Gulf Coast
Posts: 5,201
Thanks: 1
Thanked 1 Time in 1 Post
Feedback Score: 1 reviews
Quote:
Originally Posted by smokersteve View Post
My truck is an 06 f-350. My battery light will ficker randomly on rare occations. So I have been watching the voltage on the insight and it will touch the 12V range sometimes. I dont think it has touched 12.5V. I pulled the alternator off and that Passed. The batteries are good.
I then took the truck to autozone to have them test the vehicle and it came up with -Voltage regulator diode failure- Im not sure what that means.
The diode prevent reverse current flow, battery drain. the light on my 7.3 flickers, it is the alternator plug that is worn from vibration. Its been like that for some time.

Sent from my SCH-I500
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
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:

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
Display Modes

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



All times are GMT -8. The time now is 09:27 AM.


Powered by vBulletin® Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Search Engine Optimization by vBSEO 3.6.1
Garage Plus, Vendor Tools vBulletin Plugins by Drive Thru Online, Inc.

vB.Sponsors