battery voltage - Ford Powerstroke Diesel Forum
6.0L Problems Forum Having Trouble? Post here

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 07-07-2011, 04:33 PM
Member
 

Join Date: Oct 2007
Posts: 39
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
battery voltage

anybody help me out with this when i start my 2006 6.0 the battery voltage starts out at 12.3 then after the normal 30 seconds thing the alt kicks in and the battery voltage goes up to 13.2 to 13.6 then after 10 or so minutes the voltage starts dropping to 13.1 to 12.8. Do i have a bad alt or is this normal i'm seeing this on my cts the truck has 48,000 miles on it.
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2  
Old 07-07-2011, 07:10 PM
Serving Our Country!
 

Join Date: Aug 2007
Location: Manor, TX
Posts: 2,883
Thanks: 0
Thanked 18 Times in 17 Posts
Feedback Score: 2 reviews
It's partly normal. The alternator is on as soon as the truck is running, what you see is the glow plugs shutting off up to 2 min after you turn the key to run. As for the voltage dropping again after a few min, I would start by checking the GPR when you see the voltage drop. Also, try using a voltage meter, it might just be the circuit that your cts is on.
Reply With Quote Quick reply to this message
  #3  
Old 07-07-2011, 07:18 PM
Member
 

Join Date: Oct 2007
Posts: 39
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
whats the gpr? it seem like after the glow plugs turn off ( im in san diego california) so its only about 30 seconds the voltage goes up to anywhere from 13.2 to 13.7 then after about 10 mins it starts dropping to about 12.8 or so and the battery are brand new i took back my last set of battery after being in for 10 months thinking i had a bad one but with the brand new ones does the same thing so i kind of ruled out batterys.
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 09:36 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